The woman told a 911 dispatcher she was being chased by three men in a truck while driving in Phoenix. Then came three gunshots, and silence. Police say the woman, who has not been identified, was shot in the head before crashing into a concrete median on State Route 51 on Wednesday night, per the Arizona Republic. "She believed these people were following her specifically" as she drove on Interstate 10 around 7:20pm, "but she didn't offer any information as to why," says Sgt. Jonathan Howard, adding authorities are now searching for a white truck with a ladder rack and toolbox.
The truck—believed to be carrying three Hispanic men, per Fox 10—was driving aggressively, according to "five or six" 911 calls Wednesday evening. However, police are still unclear why the shooting, which killed the woman, occurred. It also caused minor collisions involving four vehicles, and two people were taken to a hospital with minor injuries, police say. Several white, work-style trucks were later stopped, but none "panned out," says Howard. Police now plan to review freeway camera footage and other surveillance footage available. Authorities say the shooting doesn't appear to be linked to Phoenix's serial shooter, per CBS News.