US: Four killed in mall shooting in Washington state
A gunman opened fire in a crowded mall north of Seattle, killing four people and critically wounding another before fleeing, authorities in the US state of Washington said.

The Washington State Patrol said the five were shot on Friday at the Cascade Mall in Burlington, about 105km north of Seattle.

Sergeant Mark Francis said authorities were searching for a "Hispanic male wearing grey" who was last seen walking towards a highway from the mall.

"We are still actively looking for the shooter. Stay indoors, stay secure," Francis said at a news conference.

Francis said four females were killed, and one male suffered life-threatening injuries.