Twelve shot by gunman at naval facility
A gunman who died after killing 12 people at a naval installation in Washington DC has been identified as a former Navy serviceman.
Aaron Alexis, 34, of Fort Worth, Texas, died in a gun battle with police during the rampage at Washington Navy Yard.
Eight others were wounded in the attack, which began at around 8:20 local time (12:20 GMT) on Monday.
US President Barack Obama ordered flags be lowered to half mast at the White House and Capitol Hill.
Rajini Vaidyanathan reports.