At least 20 people have been killed and more than 100 injured in a mass shooting at a country music concert in Las Vegas, according to police officials.
Police descended on the Las Vegas Strip Sunday night after authorities received reports of an active shooter near the Route 91 Harvest Festival.
Earlier, University Medical Center spokeswoman Danita Cohen said that 26 people were admitted to hospital, according to the Associated Press. Of those, at least two died and 12 were in critical condition.
Police responded to reports of an active shooter at the Mandalay Bay Hotel and Casino on the south side of the Las Vegas Strip Sunday night.
Audience members at the Route 91 Harvest Festival reported seeing flashes of muzzle light coming from the upper floors of the Mandalay Bay tower across the Strip from where the concert was being held, Associated Press reports.
One witness told AP he heard bursts of gunfire stopping and starting over a period of more than five minutes as he and other concert-goers took cover.
A Southern California police department said one of its off-duty officers was shot during the attack and was taken to hospital with with non-life threatening injuries. Authorities did not release his name.
Witnesses said country singer Jason Aldean — who was scheduled to perform at 9:40 p.m. — was partway through his set when the gunshots started.
“Tonight has been beyond horrific,” Aldean wrote in an Instagram post early Monday morning. “It hurts my heart that this would happen to anyone who was just coming out to enjoy what should have been a fun night.”
What do we know about the attacker?
At this point, no information has been released about the attacker. Dozens of police vehicles have converged on the Las Vegas strip and police have said one suspect is “down.” Police later added that they believed there were no more suspects.
Officers carrying assault rifles were seen running into the Mandalay Bay Hotel and Casino.
What else do we know?
Authorities have shut down part of the Las Vegas Strip and Interstate 15.
Flights were temporarily halted at McCarran International Airport because of the shooting, the airport said on Twitter. The airport said early Monday that limited flight activity had resumed.
This is a developing story.