Police are searching for a suspect after an officer was injured during a shooting in Thornton Sunday night.The shooting happened around 9:30 p.m. on Ulster Street near E. 128th Avenue. Police say they were investigating "a repor t of an unwanted person."Authorities say while police were talking with the person who made the report, the suspect fired multiple rounds at officers.One officer was shot and another officer returned fire, police say. Watch the report below: Thorton officer injured in shooting, suspect remains at largeThe officer who was shot was taken to the hospital with injuries that were serious but not life threatening.It's unclear if the suspect was shot. The suspect, who police identified early Monday morning as Luis Arebalo, took off from the scene.Arebalo, 37, is described as 5-foot-9 and about 180 pounds with brown hair and brown eyes. He was last seen wearing a black short-sleeved shirt and dark colored pants.He's being considered armed and dangerous. Police are urging the public to not approach or try to contact him. Anyone who has seen Arebalo or has information about his whereabouts is asked to call 911.As police continue to investigate, anyone with information can call Thornton police at 720-977-5069.Residents in the area were asked to shelter in place and others were told to avoid the area as police investigated near the scene. The shelter-in-place has since been lifted. ...read more read less