At least 20 people were killed and 100 wounded after a mass shooting at a country music festival in Las Vegas late Sunday night, according to police.
University Medical Center said it took in 26 patients from the scene, including the two dead. At least 12 of the victims were listed in critical condition. Sunrise Hospital and Medical Center confirmed that it also treated victims but did not offer any details.
One of the victims was an off-duty police officer from Bakersfield, California. 23 ABC News in Bakersfield said the injuries were not life-threatening.
Sheriff Joe Lombardo of Las Vegas Metropolitan Police Department said police shot and killed the suspect on the 32nd floor of the Mandalay Bay Hotel. He was described as a local resident, and was described as the “sole aggressor” in the shooting.
Lombardo said police are seeking his companion, Marilou Danley.
The investigation remained active early Monday.

Authorities shut down part of the Las Vegas Strip as they responded to the incident, which happened at the Route 91 Harvest Festival near Mandalay Bay. McCarran International Airport said some flights had been diverted due to the incident. Travelers should expect delays as a result. In addition, police said part of I-15 had been shut down.
Around 40,000 people attended the concert, the AP said.
Jason Aldean was performing when his set was interrupted by the sound of gunfire:
“The concert was going on and we heard what sounded firecrackers going off,” one witness, Megan Kearny, told NBC News. “All of a sudden we heard what sounded like a machine gun and people just started screaming that they were hit and to get down, and about every 20 seconds after that you would hear a round of machine guns, and people just dropping, hundreds of bodies over the ground.”
“The shots just kept coming,” another witness told KLAS.
Aldean and the rest of his team were not injured, Entertainment Tonight reported.
Several videos posted online contained what sounded like rapid gunfire:
Footage from someone at the Mandalay Bay appeared to reveal people running from the event:
Video from the scene also showed a major police response:
Two of the festival’s performers tweeted about the incident:
This is a developing story and will be updated with new information as we receive it.