Orlando shooting: In 911 transcripts, gunman said US must stop Syria bombing

Click to play video 'Orlando 911 calls tell of fear at Pulse nightclub' Orlando 911 calls tell of fear at Pulse nightclub
WATCH: "He's going to kill us," one 911 caller is heard saying to a dispatcher after shooter Omar Mateen opened fire at a gay Orlando nightclub in June killing 49 people – Sep 23, 2016

ORLANDO, Fla. – The gunman responsible for the worst mass shooting in U.S. history told a police negotiator during a standoff at an Orlando nightclub that the United States needed to stop bombing Syria and Iraq, according to a transcript of the phone conversation released Friday.

WATCH: Orlando shooter’s 911 calls released

Click to play video 'Orlando shooter’s 911 calls released' Orlando shooter’s 911 calls released
Orlando shooter’s 911 calls released – Nov 1, 2016

Omar Mateen identified himself to a 911 operator as the shooter at the Pulse nightclub about a half hour after the massacre started and he pledged allegiance to the Islamic State group.

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“I want to let you know I’m in Orlando and I did the shooting,” he said.

READ MORE: Orlando shooter Omar Mateen repeatedly taunted for being Muslim

When a police negotiator called him back about a dozen minutes later, Mateen told the negotiator he needed to stop the U.S. airstrikes in Syria and Iraq. A U.S. led coalition has targeted Islamic State militants with airstrikes in those two countries.

“They are killing a lot of innocent people,” said Mateen, a New York-born son of an Afghan immigrant.

“What am I to do here when my people are getting killed over there? You get what I’m saying?”

Mateen also compared himself to Boston Marathon bomber Tamerlan Tsarnaev, according to the transcripts. Three people were killed and more than 260 were injured when two bombs exploded at the marathon’s finish line in 2013.

“My homeboy Tamerlan Tsarnaev did his thing on the Boston Marathon,” Mateen said. “So, now it’s my turn, OK?”

READ MORE: Orlando nightclub shooter’s father appears at Hillary Clinton rally in Florida

Mateen told the negotiator that he had fasted and prayed all day since it was the Muslim holiday, Ramadan.

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Mateen also told the police negotiator that he had planted bombs in a vehicle outside the gay nightclub. Mateen’s statement ended up being false, but police officers took the threat seriously at the time.

This week, the city of Orlando has made public dozens of 911 calls, as well as the transcripts of three conversations Mateen had with police negotiators, after fighting with media groups seeking their release. A hearing is being held Friday on the litigation between the city and two dozen media groups, including The Associated Press.

WATCH: Mother of Pulse nightclub victim delivers emotional speech during DNC

Click to play video 'Mother of Pulse nightclub victim delivers emotional speech during DNC' Mother of Pulse nightclub victim delivers emotional speech during DNC
Mother of Pulse nightclub victim delivers emotional speech during DNC – Jul 27, 2016

The June 12 nightclub attack claimed 49 lives and seriously injured 53 others.

The media groups had argued that the release of the more than 600 records would help the public evaluate the police response to the massacre. The city had said the records were exempt from the state’s public records law, both because they were part of an investigation and because some were graphic calls of patrons being shot and killed.

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Earlier this month, the FBI, which is investigating the mass shooting, said that withholding the records was no longer necessary to its probe.