One person was shot and killed and five others were injured in a shooting on Wednesday that unfolded across multiple locations in Mesa, Arizona, the Arizona Republic newspaper reported on its website.
Paramedics treated four people at one location near a light rail station, the newspaper reported.
A representative from the Mesa Fire Department confirmed that multiple people had been shot but could not immediately provide more information.
The Mesa Police Department said on its Twitter page there was an active shooting in the city, which is less than 15 miles east of Phoenix.
The East Valley Institute of Technology in the area was placed on lockdown as a precaution due to the shooting, local television station ABC15 reported.
The shooter, a man in his 40s with a large tattoo, was still at large and there were five or six shooting locations, local television station 12News, an NBC affiliate, reported.
(Reporting by Alex Dobuzinskis and Dan Whitcomb in Los Angeles; Editing by Cynthia Johnston and Lisa Lambert)