Las Vegas Shooting 1st October 2017 Mandalay Bay

Over 50 dead, 200 injured in Las Vegas after deadliest shooting in modern US history

More than 50 people were killed and 200 injured when a lone gunman opened fire from a perch high up in the Mandalay Bay Resort and Casino in Las Vegas Sunday night, police said, making it the deadliest shooting in modern U.S. history.

The “nonstop gunfire,” according to one witness, sent bystanders outside the resort on the Vegas strip ducking for cover and scrambling for their lives.

Bystanders sprang into action, caring for the wounded and at least one described someone dying in their arms.

Police said a Las Vegas police officer who was off-duty attending the concert is among the dead.

One video showed the terrifying aftermath as the injured lay on stretchers or on the ground with responders and bystanders surrounding them to give aid. Bystanders made makeshift stretchers out of police barricades, plugged wounds with their hands and used their clothing to try to stanch the bleeding from the wounded.

PHOTO: A man lays on top of a woman as others flee the Route 91 Harvest country music festival grounds after an active shooter was reported on Oct. 1, 2017 in Las Vegas. The woman later was seen getting up with help.