The confirmed death toll in the Las Vegas shooting surpassed the number in Orlando, Florida, where Omar Mateen, a gunman who had pledged allegiance to ISIS, killed 49 people at the Pulse nightclub in June 2016. Other recent gun rampages in the U.S. include the Sandy Hook school shooting in 2012 that killed 27 people and the Virginia Tech massacre in 2007 in which 32 people were killed.

Multiple videos posted on social media after the Las Vegas shooting show rounds of gunfire ringing out during a musical performance at the Route 91 Harvest festival a little after 10 p.m. Sunday. Photos show concertgoers dropping to the ground for cover and fleeing the scene amid panic. Lombardo noted that incorrect reports on social media suggested there were shootings at other resorts. “That has been proven to be false,” he said. Reports of explosives going off were also false, he added.

The country-music singer Jason Aldean was performing when the gunfire began, according to the Associated Press; the music stopped once the shots became audible. Witnesses reported first hearing gunfire coming from the upper floors of the nearby Mandalay Bay Resort and Casino, according to the Los Angeles Times, and heard multiple rounds of shooting. Police later confirmed that the shooting came from the 32nd floor of the hotel.

Flights were diverted from McCarran Airport in Las Vegas following the incident, and all activity at the airport was temporarily halted. MGM Resorts, which owns the Mandalay Bay hotel, stated on social media that law enforcement asked hotels in the vicinity to go on lockdown to ensure the safety of their guests.

Several hours after the shooting, Aldean posted on Instagram that he is “heartbroken,” calling the shooting “beyond horrific.”

Tonight has been beyond horrific. I still dont know what to say but wanted to let everyone know that Me and my Crew are safe. My Thoughts and prayers go out to everyone involved tonight. It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night. #heartbroken #stopthehate A post shared by Jason Aldean (@jasonaldean) on Oct 2, 2017 at 1:17am PDT

Several other country-music performers at the concert tweeted that they were safe:

Active shooter at @Route91Harvest in Vegas. We're safe. Love you guys. — Luke Combs (@LukeCombsMusic) October 2, 2017

Praying for everyone here in Vegas. I witnessed the most unimaginable event tonight. We are okay. Others arent. Please pray. — Jake Owen (@jakeowen) October 2, 2017

President Donald Trump also tweeted his condolences.

My warmest condolences and sympathies to the victims and families of the terrible Las Vegas shooting. God bless you! — Donald J. Trump (@realDonaldTrump) October 2, 2017

“The President has been briefed on the horrific tragedy in Las Vegas. We are monitoring the situation closely and offer our full support to state and local officials.” White House Press Secretary Sarah Huckabee Sanders said in a statement. “All of those affected are in our thoughts and prayers.”

Getty Images

On social media and television-news reports, the Las Vegas police department warned people to stay away from the Strip. Officials also provided a phone number that people can call to locate missing friends and members of their family.

For families looking to locate missing loved ones, please call 1-866-535-5654. — LVMPD (@LVMPD) October 2, 2017

During a press conference, officers also encouraged anyone with cellphone footage of the shooting to turn it in to the authorities.

This post will be updated.

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