Body camera video showing the chaos of the Las Vegas attack as police officers try to figure out the location of the shooter and usher people away from rapid gunfire has been released by US authorities.
Las Vegas Metropolitan Police released short segments of footage from various officers who responded to the most deadly massacre in modern US history.
Amid wailing police sirens, screaming and volleys of rapid gunfire, police officers can be seen hunkered down behind a low brick wall near the Mandalay Bay hotel.
"Hey you guys, get down!" one officer is heard yelling at a small group of people sticking their heads over the fence opposite the brick wall.
"Go that way! Get out of here! There's gunshots coming from over there, go that way!"
Rapid gunfire breaks out again, louder than before, as the group of police officers try to figure out where the shots are coming from.
In another portion of the footage, police cars with lights flashing are seen outside the hotel, while a group of police officers take cover from rounds of gunfire behind a wall.
Police would later identify the shooter as Stephen Paddock, 64, who was shooting from the 32nd floor of the Las Vegas hotel-casino Mandalay Bay.
But in the midst of the attack, officers were taking cover and looking around in confusion, trying to locate the source of the barrage of gunfire.
"They're shooting right at us guys, everyone just stay down. Stay down," one officer tells the group.
"Where's it at?" asks another.
"North of the Mandalay Bay. It's coming out of a window," says a third.
The video then cuts to the next scene, where a police officer is crouching behind a car while gunfire and sirens are heard in the distance.
"There's a couple of officers hunkered down next to a patrol vehicle on Las Vegas boulevard," he says into a radio.
What he says next is drowned out by another round of loud gunfire, but he jumps up and tells a group of bystanders to take cover from the gunfire.
"Get back! Get back! There's multiple people shot out there. Get in there! Get in there!" he shouts.
In another minute of footage, the vision is completely obscured while people are heard screaming amid gunfire, sirens, and shouted directions from police.
"We see muzzle flash from the Mandalay Bay. Mandalay Bay. Must be in a room," an officer says.
Another officer yells "Get down! Get down!" while trying to keep people safe.
"I got a vest on. Stay as close as possible," an officer says.
In the final block of footage, police are seen ushering a group of people to safety.
Paddock killed 58 people and wounded hundreds more as he opened fire onto a crowd at a country music concert on Sunday (local time), and killed himself before police stormed his hotel room.