Shooting on Las Vegas Strip kills more than fifty people, hundreds injured

The attack happened on the final night of the three-day country music festival, which has been going on for the past four years across Las Vegas Boulevard from Mandalay Bay.| AP

Concert-goers reported seeing muzzle flashes from the upper floors of the Mandalay Bay hotel-casino across Las Vegas Boulevard from the Route 91 Harvest country music festival and the sound of what they described as automatic gunfire.Witnesses say they saw multiple victims Sunday night as they fled the gunfire raining down on the concert venue.| AP

Dozens of patrol vehicles descended on the Strip after authorities received reports of an active shooter near the Route 91 Harvest Festival. Some officers took cover behind their vehicles while others carrying assault rifles ran into the Mandalay Bay Hotel and Casino. | AP

Nevada sheriff says off-duty officers attending Las Vegas country music festival have died. In pic: Police officers take cover near the scene of a shooting near the Mandalay Bay resort and casino on the Las Vegas Strip, Sunday | AP

Some flights have resumed at the Las Vegas airport after all planes were temporarily grounded. McCarran International Airport says limited flight activity has resumed early Monday. | AP

Witnesses say country singer Jason Aldean was playing near the end of the concert when gunfire rang out. | AP