An unidentified gunman opened fire at the US Navy Yard in Washington on Monday and wounded several people including two police officers, officials reported.
Police and FBI agents descended on the area in force as helicopters buzzed overhead, amid reports the shooter was armed with an assault rifle and was on the loose in the complex.
Security agents have rushed to scene of firing. In this photo a cop is seen taking position behind one of the several vehicles that have converged on the site.
