By CNN Staff
updated 9:24 AM EDT, Mon September 16, 2013
(CNN) -- At least one person was injured Monday after a person fired shots inside the Washington Navy Yard, the U.S. Navy said.
An official told CNN's Barbara Starr that "several" people sustained injuries, according to phoned-in reports from the building.
The incident occurred at 8:20 a.m. when several shots were fired inside the headquarters for Naval Sea Systems Command in southeast Washington, D.C. An "active shooter" remained inside the building, the Navy said.