Several people killed in shooting at In-N-Out restaurant in Twin Falls, Idaho, officials say

Several people were killed in a shooting Saturday afternoon at an In-N-Out restaurant in Twin Falls, Idaho, local authorities said. 

The situation unfolded before 2:30 p.m. local time. Social media video obtained by CBS News showed people fleeing a shopping center parking lot as multiple gunshots are heard. In the video, a person carrying what appeared to be a firearm could be seen outside the restaurant opening the doors to a parked sedan. 

In a news conference Saturday night, Twin Falls Police Chief Matthew Hicks told reporters that there were fatalities, but he could not confirm an exact number. Joshua Palmer, a Twin Falls city spokesperson, had initially told CBS News that at least three people had been killed and two more wounded. 

Hicks said there were "a number of people being treated for injuries" at a local hospital. 

The suspected gunman was dead, Hicks disclosed, but he did not detail how the person was killed. 

"The suspected shooter in this incident is deceased," Hicks said. "He was nearby on the scene there, and we are working to try to ascertain his identity and the motivations behind that."

The police chief said that investigators were attempting to interview "hundreds of people" that were in the area at the time of the shooting. 

"We have literally hundreds of people that were in some way, shape or form in the area of this restaurant at the time that are being interviewed right now," Hicks said. 

Police shut down roads and a nearby bridge during the response and asked residents to stay away from the area. An FBI spokesperson told CBS News that its agents were on scene and assisting with the investigation. 

Twin Falls is located in southern Idaho, about 120 miles southeast of Boise.