A U.S. Immigration and Customs Enforcement agent is dead after gunfire at the agency's offices in a California federal building.
In the incident at the Glenn M. Anderson Federal Building in Long Beach, Calif., an ICE agent allegedly opened fire on two colleagues, leaving one wounded with multiple gunshots, another unharmed, and the initial shooter dead, ICE told ABC News.
Earlier, multiple published reports citing the Long Beach Police described a second agent dead and the third wounded, but those reports were mistaken, ICE said.
The incident began as an unspecified dispute between a supervisor and a subordinate, The Los Angeles Times reported.
It occurred at 5:30 p.m. PT inside the ICE offices, according to a written statement by ICE, which added that the victims were with ICE's Homeland Security Investigations unit.
"One of the agents died at the scene," the statement said. "The second agent was transported to a local hospital where he is listed in stable condition. The names of the agents are not being released pending notification of the next of kin. The shooting is being investigated by ICE's Office of Professional Responsibility, the Long Beach Police Department and the FBI."
After the shootings, television aerial footage showed at least one victim being transported under police escort from the federal building to a hospital.
Later, police conducted a security sweep of the building, ABC News station KABC reported.