US authorities will release "limited transcripts" on Monday of Orlando gunman Omar Mateen and police negotiators' telephone conversations during his attack at a gay nightclub that left 49 people dead, Loretta Lynch, the Attorney General, said on Sunday.

Ms Lynch said the conversations included Mateen's pledge of allegiance to the Islamic State of Iraq and the Levant, and his views of US policy.

But those statements will not be included in the transcripts released to the public, she said.