UPDATE: Los Angeles police are responding to reports of two victims down and an active shooter on UCLA's campus, according to LAPD officer Tony Im.
LOS ANGELES -- UCLA campus police are investigating an active shooter situation on campus, according to KTLA.
Officials put the campus on lockdown as authorities investigate the incident at Engineering building 4.
The UCLA Newsroom Twitter sent out a tweet reporting the incident.
UCLA Bruin Alert sent out a tweet saying the shooting occurred outside of an engineering building and asked students to get to a secure location.
Check back for updates on this developing story.