Three immigration officers were involved in a shootout at the Long Beach Federal Building Thursday evening, police said.
Two officers were pronounced dead at the scene and a third was sent to a nearby hospital, according to aerial communications from Long Beach Police.
The third victim, repeatedly referred to as a man, was reportedly shot in the upper body.
He is being treated at St. Mary's Medical Center, and his vital signs were positive, said Francine Marlenee, speaking on behalf of the hospital.
One of the agents is believed to be the suspected gunman, police said. But the suspect's condition was unknown.
The incident occurred shortly before 6 p.m.Thursday on the seventh floor of the building located at 501 W. Ocean Blvd., police said.
Initial reports described a shootout involving two people, including a U.S. Immigration and Customs Enforcement (ICE) officer.
More than a dozen police vehicles and at least two fire trucks lined the sidewalks surrounding the heavily-secured building.