CNN:
A man carrying a rifle entered a Macy's store at a mall in Washington state, shot dead four women and a man, and vanished into the night, police said.
Authorities believe only one person fired the shots Friday night at Cascade Mall in Burlington, about an hour north of Seattle.
A search is underway for an armed man who headed toward Interstate 5 after the attack, said Sgt. Mark Francis, a spokesman for the Washington State Patrol.
More on this tragedy as we learn it.