WASHINGTON (AP) -- Authorities say they are looking for two additional suspects in the shooting rampage at the Washington Navy Yard.
District of Columbia Police Chief Cathy Lanier says witnesses reported seeing two additional gunmen, both dressed in military-style clothing.
Lanier says one police officer was wounded in an exchange of gunfire with a shooter. She says one shooter has been killed.
Two Navy officials say at least six people were killed in the rampage.
D.C. Mayor Vincent Gray said at a Monday news conference four people were wounded and taken to hospitals.
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