At least 59 people have been killed and more than 500 injured after Stephen Paddock, 64, opened fire on a crowd at a Las Vegas country music festival.
Police said Paddock, a retired accountant, killed himself before a SWAT team entered his room in the Mandalay Bay Hotel overlooking the festival venue.
Las Vegas Sheriff Joseph Lombardo law enforcement were working four separate crime scenes: Paddock's room at the Mandalay Bay hotel, the concert venue, the gunman's house in Mesquite, and another house he owns in northern Nevada which a SWAT team was poised to raid.
Here are some of the photos of the chaos and the aftermath:
Warning graphic images
People run for cover after gun fire was heard at the Route 91 Harvest country music festival in Las Vegas, Nevada. Source: Getty Images North America
People scramble for shelter at the Route 91 Harvest country music festival on October 1, 2017 in Las Vegas, Nevada. Source: Getty Images North America
A man lays on top of a woman as others flee. A photographer later witnessed the man and woman get up and walk away. Source: Getty Images
Las Vegas Metropolitan Police officers run down Tropicana Ave near Las Vegas Boulevard after the shooting. Source: Getty Images North America
A woman cries while hiding inside the Sands Corporation plane hangar after a mass shooting in which dozens were killed at the Route 91 Harvest country festival. Source: AAP
Police officers advise people to take cover near the scene of a shooting near the Mandalay Bay resort and casino on the Las Vegas Strip. Source: AAP
Debris is strewn through the scene of a mass shooting at a music festival near the Mandalay Bay resort and casino on the Las Vegas Strip, Monday, Oct 2, 2017. Source: AAP
People light candles at the Ascend Amphitheater for a vigil honouring the victims of the mass shooting in Las Vegas on October 2, 2017 in Nashville, Tennessee. Source: Getty Images
(L-R)US President Donald Trump, First Lady Melania Trump, Vice President Mike Pence, wife Karen Pence and White House staff take part in a moment of silence. Source: AFP
Clark County Sheriff Joe Lombardo updates the death toll to 59 killed and 527 injured during a press conference at the Metropolitan Police Department. Source: Los Angeles Times