Multiple people were killed and several others were injured in a shooting at an In-N-Out Burger in southern Idaho on Saturday afternoon, according to police.

Twin Falls Police Chief Matthew Hicks said during a news conference that the suspected gunman was also dead. Authorities are still working to identify the shooter and determine a motive.

“We believe the threat to the community is over,” Hicks said, according to the Associated Press.

He also said investigators had not yet confirmed the total number of people killed or wounded because officials were still notifying victims’ families.

“It was a very chaotic scene,” Hicks said, the AP reported. 

Before the police briefing, Twin Falls County Commissioner Brent Reinke said Sheriff Jack Johnson had informed him that five people had been injured.

Witness Lane Koehn, 34, said he was stopped at a traffic light near the restaurant when he saw an individual carrying what appeared to be an AR-style rifle come out of the drive-thru area. Koehn said another man, who had a handgun, opened fire on the suspected shooter.