Police in a Phoenix suburb say three people, including a teenager, were killed and five others were injured after a shooting outside a crowded concert and car show.

Police believe there was more than one shooter involved. Investigators did not have a suspect in custody but multiple people were being questioned.

Security at El Camaron Gigante kicked out people who started fighting inside the venue, a Glendale police spokesperson said during a May 5 news conference. Once in the parking lot, the individuals started firing gunshots, police said.