How it unfolded: A Timeline of events in Turkey's failed attempted coup
Below is a timeline of breaking events in Turkey on Friday and Saturday - from the latest incident first (all in Irish time).
1201 - US-based Islamic cleric Fethullah Gulen denies accusations he played a role in the attempted coup and condemns "in the strongest terms" the attempt to topple the government. U.S. Secretary of State John Kerry earlier says he has not received any request to extradite Gulen.
1151 - Police detain about 100 military officers at air base in Diyarbakir, southeastern Turkey, security sources say.
1145 - Turkish authorities remove 2,745 judges from duty, broadcaster NTV reports, citing a decision by the High Council of Judges and Prosectors (HSYK). Five members of HSYK, Turkey's high judiciary board, are also removed, state-run Anadolu Agency reports.
1054 - Turkish maritime authorities re-open Istanbul's Bosphorus Strait to transiting tankers, agent GAC says.
1027 - Turkish President Tayyip Erdogan sends a mass text message imploring people to take to the streets against a "narrow cadre".
1023 - Greek military source says anti-government group at Turkey's Golcuk naval base has taken over frigate, head of Turkish fleet taken hostage.
1000 - The airspace over Turkey's northwestern Marmara region has been closed to civilian flights until 1805 GMT, the state-run Anadolu Agency said on Saturday, citing information from aviation authorities.
0950 - Russia reiterates its readiness for joint constructive work with the legitimate leadership of Turkey, Russia's Foreign Ministry said on Saturday
0920 - Many Turkish military commanders have been taken hostage by soldiers who attempted a coup, the acting chief of staff of the armed forces, Umit Dundar, said on Saturday.
0840 - British Foreign Minister Boris Johnson said on Saturday he had spoken to his counterpart in Turkey to underline the UK's support for the country's democratic elected government following an attempted military coup there.
0800 - The death toll from an attempted coup by Turkish soldiers overnight has risen to 90, state-run Anadolu Agency reported on Saturday, with 1,154 people wounded.
0742 - Turkish authorities have detained 1,563 military personnel across the country after a coup attempt overnight by a faction of the military, an official told Reuters.
0700 - Turkey's intelligence agency headquarters were attacked by military helicopters and heavy machinegun fire during an attempted military coup overnight, wounding at least three people, an intelligence source told Reuters on Saturday.
0635 - The head of Turkey's armed forces Hulusi Akar has been rescued after being held hostage during an attempted coup by a military faction which used tanks and attack helicopters to try to seize power overnight, a senior Turkish official said.
0620 - Turkish authorities have detained 754 members of the armed forces after an overnight coup attempt by a faction within the military that used tanks and attack helicopters to try to overthrow the government, a senior official said.
0610 - Turkey's military headquarters are now held by pro-government forces but small groups of rebel soldiers behind an overnight coup attempt are still resisting and control some military helicopters, a senior Turkish official said on Saturday.
0538 - Supporters of Turkish President Tayyip Erdogan attacked a group of soldiers who had surrendered on an Istanbul bridge after taking part in an attempted coup overnight, before police intervened to rescue them, a Reuters witness said.
0504 -Turkey appointed the head of its First Army, a group of divisions within its land forces, as acting chief of military staff on Saturday while the whereabouts of the head of the armed forces was unknown.
0450 - European Council President Donald Tusk called on Saturday for a swift return to Turkey's constitutional order, after a coup attempt there.
0448 - Around 50 soldiers involved in an attempted military coup in Turkey surrendered on one of the bridges across the Bosphorus in Istanbul on Saturday, abandoning their tanks with their hands raised in the air, live footage on CNN Turk showed.
0405 - Bomb attacks on Turkey's parliament are continuing, a senior Turkish official said on Saturday, adding that rebel soldiers have been warned they will be shot down if they attempt to use more military aircraft.
0340 - Forty-two people were killed in the Turkish capital Ankara during an attempted coup that started on Friday night, a senior Turkish official said, confirming an earlier report from state-run Anadolu Agency.
0318 - Soldiers took control of Istanbul's main Ataturk airport on Saturday shortly after President Tayyip Erdogan landed there and condemned what he said was an attempted coup by a faction in the military
0243 - Turkish President Tayyip Erdogan on Saturday said he would stay with his "people" and not go anywhere, hours after a section of the military attempted to overthrow him.
0220 - U.S. Democratic presidential candidate Hillary Clinton said she supported Turkey's civilian government as it faced an attempted coup. Clinton said in a statement she was following the events in Turkey "with great concern."
0200 - Turkish private broadcaster CNN Turk halted its live news broadcast early on Saturday, as a presenter said soldiers had entered the studio control room. The channel showed a live shot of its empty red and white studio. The sound of gunfire was heard on the audio, as well as the sound of a crowd outside the station.
0153 - Around 30 Turkish soldiers who were part of a faction attempting to carry out a military coup surrendered their weapons after being surrounded by armed police in Istanbul's central Taksim square, a Reuters witness said.
0140 - Two more explosions hit Turkey's parliament building in the capital Ankara early on Saturday, a witness reported, after an earlier blast rocked the building.
0130 - Turkish President Tayyip Erdogan's plane has landed in Istanbul, a Turkish official said.
0115 - Staff at Istanbul's Ataturk airport hope to resume international departures soon, European air traffic control agency Eurocontrol said early on Saturday.
0100 - Erdogan appears among supporters at Istanbul airport, says uprising has been attempted against solidarity and unity of country; says no power is above national will.
0045 - Around 30 soldiers, part of faction attempting to carry out a military coup, surrender weapons after being surrounded by armed police in Istanbul's central Taksim square.
0045 - Turkish private broadcaster CNN Turk halts live news broadcast, presenter says soldiers entered studio control room.
0027 - Two more explosions hit parliament; member of parliament reached by telephone says lawmakers are hiding in shelters at the parliament.
0020 - Turkish official says Erdogan's plane lands in Istanbul.
2352 - Turkish PM says situation under control, blames Gulen movement, declares no-fly zone over Ankara. A U.S.-based organisation close to Gulen earlier denied involvement.
2339 - Bomb hits parliament in Ankara, state-run Anadolu Agency says. Reuters witness hears blast in Istanbul.
2320 - Kerry says emphasised "absolute support for Turkey's democratically elected, civilian government and democratic institutions" in phone call with Turkish foreign minister.
23.13 - Group close to U.S.-based cleric Gulen says accusations it involved in coup attempt are "highly irresponsible". Condemns military intervention in Turkish politics, says concerned about safety of citizens. The justice minister earlier blamed Gulen loyalists.
23.05 - President Obama says he and Secretary of State Kerry agree that all parties in Turkey should support elected government. Urges restraint, avoidance of bloodshed - White House statement.
23.04 - State-run Anadolu Agency says 17 police killed at Ankara special forces HQ; no independent confirmation
22.59 - Turkish fighter jet shoots down military helicopter used by coup-plotters over Ankara, broadcaster NTV says.
22.51 - Commander of special forces says a group has engaged in treason, they will not succeed. Says military does not condone coup.
22.47 - PM says gangs and illegal formations are behind coup attempt, and calls it a terrorist act. He says government remains in charge. Urges people to take to the streets.
22.37 - Commander of Turkey's First Army, part of land forces responsible for Istanbul and other western areas, said those attempting a coup were a small faction and "nothing to worry about".
22.26 - Two loud explosions heard in centre of Turkish capital
22.08 - Tanks surround Turkish parliament building, open fire. Gunfire heard at Istanbul airport.
22.03 - Turkish justice minister says members of a movement loyal to U.S.-based cleric Fethullah Gulen in the army are behind the attempted coup.
21.51 - A military helicopter opens fire over the Turkish capital Ankara, witnesses report an explosion in the capital.
21.35 - Turkish state broadcaster TRT goes off air, but later starts broadcasting from London.
21.26 - Turkish President Tayyip Erdogan urges people to take to the streets to protest against what he describes as a coup attempt by a minority faction within the military. Speaking to a CNN Turk reporter via a cellphone video link he says it will meet a "necessary response". He says he is returning to the capital Ankara.
21.22 - Turkish PM says on Twitter everything will be done to put down coup attempt, even if it means fatalities. Says sieges are under way at some important buildings, without specifying, but urges people to remain calm.
21.18 - Presidential source says president and government are still in power.
21.05 - Turkish state broadcaster says reading statement on the orders of the military - that new constitution will be prepared, accuses government of eroding democratic and secular rule of law, that the country is being run by a "peace council", that martial law imposed, curfew imposed across the country.
21.02 - Head of Istanbul branch of Turkey's ruling AK Party says soldiers enter party building, told to go.
20.58 - Soldiers are inside buildings of Turkish state broadcaster TRT in Ankara, TRT correspondent tells Reuters.
20.57 - Facebook, Twitter, YouTube and other social media restricted in Turkey, say internet monitoring groups.
20.49 - Turkish presidential source says statement made on behalf of armed forces was not authorised by military command.
20.47 - Turkish chief of military staff among hostages taken at military headquarters in Ankara, says state-run Anadolu agency.
20.38 - Turkish President Tayyip Erdogan is safe, reports CNN Turk.
20.25 - Turkish military says has taken power to protect democratic order. In a statement sent by email and reported on Turkish TV channels, the military says all of Turkey's existing foreign relations will be maintained.
20.02 - Turkish Prime Minister Binali Yildirim says attempted coup under way, calls for calm. He says a group within Turkey's military has attempted to overthrow the government and security forces have been called in to "do what is necessary".
19.50 - Gunshots are heard in Ankara, military jets and helicopters seen flying overhead. Helicopters seen overhead in Istanbul.
19.29 - Istanbul's Bosphorus Bridge and Fatih Sultan Mehmet Bridge are both closed. Dogan News Agency footage shows cars and buses being diverted.