WASHINGTON (AP) -- (UPDATE: 4:17 p.m.) Federal law enforcement officials say the man accused in a shooting rampage at the Washington Navy Yard that left at least 12 people dead has been identified as Aaron Alexis.
The two officials spoke Monday to The Associated Press on condition of anonymity because they were not authorized to speak publicly.
One of those officials says Alexis was a 34-year-old from Texas. He is believed to have a criminal record there and to be a holder of a concealed carry weapon permit.
That official says Alexis is believed to have gotten into the Navy Yard by using someone else's identification card. It is not yet clear if that individual was an accomplice or if that person's ID card was stolen.
WASHINGTON (AP) (UPDATE: 3:43 P.M.)-- Officials: Washington Navy Yard shooter who died after rampage identified as Aaron Alexis.
Police say at least 12 people have died in the shootings at the Washington Navy Yard.
D.C. Police Chief Cathy Lanier said during a news conference Monday that 12 people were confirmed dead.
Lanier says people are being told to stay in their homes and out of the area as authorities search for two other possible suspects. One of the shooters has died.
The police chief says officers are searching for two other people with firearms wearing military-style uniforms.
She says there is no indication of a possible motive at this time.
D.C. police and the FBI say there's a report of a shooter inside a military building at the Washington Navy Yard.
Police are responding to reports of shots fired, and an FBI spokeswoman says there's at least one victim.
The U.S. Navy also confirmed on Twitter that they're looking for a gunman.
The Washington Navy Yard says on its website that it's the Navy's oldest shore establishment. It's home to the chief of Naval Operations and is also headquarters for the Naval Historical Center and numerous naval commands.
President Barack Obama is getting frequent briefings on a deadly shooting at the Washington Navy Yard.