People run for cover at the Route 91 Harvest country music festival after gunfire was heard.
Photo: David Becker/Getty Images
Concertgoers panic
Photo: David Becker/Getty Images
People take cover
Photo: David Becker/Getty Images
A police officer hides behind a police vehicle near the Mandalay Bay resort.
Photo: John Locher/AP
People are searched by Las Vegas police at the Tropicana Las Vegas.
Photo: Chase Stevens/AP
A discarded cowboy hat lies in the street.
Photo: David Becker/Getty Images
A woman sits on a curb at the scene of the shootings.
Photo: John Locher/AP