DC Navy Yard shooting 'may be related to US foreign policy'

Four people have been confirmed dead and eight injured, after a shooting at a Navy Yard in Washington DC. Witnesses say a gunman was shooting from the 4th floor at people in a cafeteria. Reports claim two or three gunmen may have been involved in the attack - though that's unconfirmed. Several civilians and police officers are among the victims. Approximately three thousand people work at the building, where the largest of the Navy's command systems is situated. For more , RT talks to political commentator John Wight.

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Naval officials said that the gunman was on the loose. The Navy said on its Twitter feed that three shots were fired at 8:20 a.m. ET at the headquarters of the Naval Sea Systems Command. About 3,000 people work in the building, the Navy said.

WRC, the NBC affiliate in Washington, reported that the shooter had a rifle.

Naval officials said that Washington police had taken control of the response.

Navy Yard Shooting Witness: He aimed his gun at us, Navy Yard shooting: Multiple deaths and injuries

At least one gunman opened fire at the U.S. Navy Yard in Washington, D.C, this morning, killing several people and injuring others, authorities said.

One hospital received three shooting victims -- a man and two women. The man is a D.C. police officer, said Janis Orlowski of Medstar Washington Hospital Center. She said all three victims were alert and speaking. She said their chances of survival were "very good."

Orlowski said it was a "very fluid situation" and more shooting victims would be coming to Medstar.

She said there were other shooting victims at the Navy Yard who would not be transported to hospitals because they are "deceased." She did not have a number of the fatalities.

Orlowski said the weapon or weapons used in the shooting "had to be semi-automatic," based on descriptions by the three people admitted at Medstar. She said they described rapid gunfire at the Navy Yard.

A D.C. police spokesman said five people had been shot at the Naval Sea Systems Command headquarters, including a D.C. police officer and one other law enforcement officer. Related Live feed: Latest from Twitter Raw video: Air lift at scene of Navy Yard shooting Video: Airlift at Navy Yard Raw video: Scene of D.C. Navy Yard shooting Raw video: Scene of Navy Yard shooting Shots fired at Navy Yard in Washington D.C. [Video] Video: Shooting at Navy Yard Watch live: Washington Navy Yard shooting Navy Yard