Beirut: The Islamic State group on Monday claimed responsibility for the Orlando shooting that killed 50 people, saying in a radio bulletin that it was carried out by "one of the soldiers of the caliphate".
"God allowed Omar Mateen, one of the soldiers of the caliphate in America, to carry out an attack entering a crusader gathering in a night club... in Orlando in Florida, killing and wounding more than 100 of them," a bulletin from Al-Bayan radio said.
The jihadist group declared its "caliphate" in Syria and Iraq in 2014.
The IS-linked news agency Amaq said on Sunday that the attack on the gay night club had been "carried out by an Islamic State fighter". US media reported that the gunman, identified as Omar Mateen, a 29-year old American citizen, had pledged allegiance to the jihadist group IS.
The FBI has admitted that Mateen — who was born to Afghan parents in New York — had previously been investigated, but cleared, for ties to a US suicide bomber. The worst mass shooting in US history left 50 people dead, in addition to the shooter, and wounded 53 others.
Events unfolded over a three-hour period from around 2:00 am (0600 GMT) when shots rang out amid the throbbing music at the Pulse Orlando club near closing time.
Police said the suspect was armed with an assault rifle and a handgun. US President Barack Obama said the FBI was investigating the killings "as an act of terrorism".
The father of the suspect said his son may have been motivated by homophobia. Congressman Michael McCaul, chairman of the House Homeland Security Committee, dubbed the murders "the worst terrorist attack on American soil since 9/11."
The attack coincides with gay pride month in the United States, with festive events all over the country, including in Orlando last week.
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Updated Date: Jun 13, 2016 16:55:44 IST