At least 59 people were killed, and more than 400 people were reported injured in a mass shooting on Sunday night in Las Vegas, where a gunman opened fire on people attending a country music festival.
The gunman, identified as 64-year-old Stephen Paddock of Mesquite, Nevad, reportedly shot at people with a machine gun from the 32nd floor of a hotel.
The attack has been deemed as the deadliest mass shooting in modern American history.
Reports state that many fire arms were found from Paddock's room at the Mandalay Bay Resort and Casino.
White House stated that President Donald Trump was monitoring the developments of the incident.
Police officials had locked down parts of the entertainment Strip, after reports of a high-powered weapon firing at the Route 91 Harvest Festival, near the Mandalay Bay Hotel and Casino.
Officials were unclear when Paddock checked into the Mandalay Bay Resort and Casino, and whether he had specifically asked a room on a top floor that overlooked the concert venue.
Police shot down the suspect in the hotel after locating him. Officials believe the shooting is not linked to international terrorism. Authorities found 23 guns, including a handgun, in the hotel room of the gunman.
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
According to nbcnews.com, the shooting started when performer Jason Aldean was onstage. He later said through Instagram that he and his band were out of danger.
"Police have located Paddock's roommate, Marilou Danley, 62, Lombardo said. They also found two vehicles related to the investigation: a Hyundai Tuscon and a Chrysler Pacifica Touring, both with Nevada license plates," the report added.
A search of their home in Mesquite, about 80 miles from Las Vegas, was underway. Joe Lombardo, the Las Vegas metropolitan police department Sheriff, told reporters that they have recovered 19 firearms plus explosives and several thousand rounds of ammunition from Paddock's home in Mesquite, Nevada, a town near the border with Arizona.
Fellow performer Jake Owen said, "It got faster and faster, almost like it was an automatic rifle. At that point, everyone on stage started running everywhere."
A concertgoer, Jon Bessette, described the incident of "pandemonium" as "the band ran off stage."
"Everyone was running, people were getting trampled," he added.
Vice President Mike Pence also tweeted about the "senseless violence."
"The hearts & prayers of the American people are with you. You have our condolences and sympathies," he wrote.
Mandalay Bay tweeted out a statement that said, "Our thoughts & prayers are with the victims of last night's tragic events. We're grateful for the immediate actions of our first responders."
Police urged families looking to locate missing loved ones to call 1-866-535-5654.
Two festival-goers, while speaking to NBC Las Vegas, said that they initially heard sounds of "firecrackers" but it gradually became evident that a shooter was firing "clip after clip" into the crowd.
Videos of the incident have also emerged online which showed the moment when the gunfire broke out during a song, sending the crowd running.
What is happening in #Lasvegas Just saw this on Instagram. #Mandalay #shooting pic.twitter.com/7m1BD1M4jN
— Stake Z. Back ▲ (@Stake18) October 2, 2017
?RT @spacetrek9: May god protect the innocent. #lasegas #mandalaybay #shooting #vegas #casino #pray pic.twitter.com/QqaX8S28Ev
— R∂vn MEZ (@Ravnski) October 2, 2017
McCarran International Airport tweeted saying: "Flights in and out of the Las Vegas airport have been temporarily halted in response to the reported shooting incident on Las Vegas Strip."
Facebook responded to the incident by creating a crisis response page for people to mark themselves safe.
Video of the exact moment when the gunfire broke out:
EYEWITNESS: Chilling footage of moment active shooter opened fire on concert goers near Mandalay Bay resort in Las Vegas pic.twitter.com/7OfAwg0ReO
— Josh Caplan (@joshdcaplan) October 2, 2017
Aldean later said via Instagram that he and his band were safe.