
A gunman opened fire on Sunday night and has killed at least 50 people and wounded 400 more. It is now the deadliest mass shooting in modern U.S. history.

People fled the scene from the packed Route 91 Harvest Festival, where Jason Aldean was performing.

Concert goers after a gunman opened fire at the country festival.

People outside of the Route 91 Harvest country music festival after reports of an active shooter.

People on the grounds after a shooter opened fire from the 32nd floor of the Mandalay Bay hotel.

People on the grounds after a shooter opened fire from the Mandalay Bay hotel.

People flee the grounds after a shooter opened fire from the Mandalay Bay hotel.

Police officers outside of the Route 91 Harvest Festival.

The banner of the music festival.

Broken windows were seen on the 32nd floor of the Mandalay Bay Resort, where the shooter was shooting from.