Isil claims most deadly shooting in history of USA
US president Barack Obama last night branded the Orlando massacre - the worst mass shooting in US history - in which 50 people died an "act of terror" and an "act of hate".
His comments came as an affiliate of international terror organisation Isil claimed that the gunman was one of its operatives.
The suspect, named as Omar Mateen, from Port St Lucie, Florida, was armed with an assault-type rifle and handgun when he sprayed revellers with bullets at the venue.
It is thought there were more than 300 people inside the building at the time.
Mr Obama said all Americans were "united in grief, in outrage and resolve to defend our people. We will never give in to fear; we will stand united to protect Americans against those who threaten the country."