OFFICIAL: VEGAS HOTEL DELAYED GUNFIRE REPORT

Mandalay Bay hotel officials didn’t notify police about a shooting in a hallway inside the highrise until after Stephen Paddock fired on the crowd outside at a country music festival, a federal official told the Associated Press.

The disclosure means there might have been a delay of about six minutes in summoning police to the scene of what became the deadliest mass shooting in modern U.S. history.

The official was briefed by law enforcement and spoke on condition of anonymity.