Khan protesters arrive in Islamabad
Tens of thousands of anti-government protesters gathered in Pakistan's capital Islamabad in the pouring rain tonight following the arrival of convoys led by a cricket star-turned-politician and a fiery anti-Taliban cleric.
The twin protests led by Imran Khan and the cleric Tahir-ul-Qadri represent the biggest challenge yet to prime minister Nawaz Sharif's year-old government.
Security had been tightened across the capital amid fears of unrest in a country with a long history of chaotic politics and military coups.
The protesters left the eastern city of Lahore yesterday, vowing to march to the capital and camp out until their demands for a new government are met.
Despite the darkness and the lashing rain, the crowds swelled as they entered Islamabad shortly before midnight. Police estimated some 60,000 people were taking part in the protest.
The protests were festive despite the rain, with demonstrators waving national and party flags and dancing to drum beats and patriotic songs.
Female supporters of Mr Qadri wearing Islamic headscarves lined the roads and waved to his convoy as it entered the city.
As he approached the Islamabad airport, Mr Khan tweeted that he would stage the sit-in on the city's main Kashmir Highway. "Sharif should have his resignation ready," he said.
A spokesman for Mr Qadri, Shahid Mursaleen, said the cleric would deliver a speech tomorrow to call for Mr Sharif's removal and immediate arrest.
Mr Sharif says he is ready to meet with his opponents but has given no indication that he would step down. His critics accuse him of vote fraud during the election that brought him to power last year.
His spokesman, Pervaiz Rashid, condemned the "irresponsible behaviour and actions" of his opponents.
"Pakistan is not a banana republic where a few thousand people come and seek the resignation of the country's prime minister," he told a local news channel.
Earlier today, as the march led by Mr Khan passed through the city of Gujranwala, supporters of Mr Sharif's Pakistan Muslim League-N (PML-N) hurled stones at the convoy, said Mr Khan, who was unharmed.
PML-N leader Rana Sanaullah told the Dawn news channel that both sides threw stones at each other.
Mohammed Azeem, a police officer in Gujranwala, about 40 miles from Lahore, said some 200 ruling party supporters clashed with Mr Khan's protesters but that "the situation is under control."
Both Mr Khan and Mr Qadri have vowed to bring one million of their followers into the streets of Islamabad, a city of roughly 1.7 million inhabitants.
Thousands of riot police have been deployed across the capital. Authorities set up shipping containers to block traffic and cut off mobile phone service in some areas.