BURLINGTON, Washington - Police searched Saturday for a gunman authorities said opened fire in the makeup department of a Macy’s store at a mall north of Seattle, killing five people before fleeing toward an interstate on foot.

People fled, customers hid in dressing rooms and employees locked the doors of nearby stores after gunshots rang out just after 7 p.m. Friday at the Cascade Mall. A helicopter, search teams and K-9 units scoured the area for a rifle-carrying man.

“We are still actively looking for the shooter,” Washington State Patrol spokesman Sgt. Mark Francis said at a news conference. “Stay indoors, stay secure.”

Francis said police were seeking a Hispanic man wearing black and armed with a “hunting-type” rifle last seen walking toward Interstate 5.

Authorities say the motive was unknown for the shooting about 60 miles north of Seattle.

The FBI was assisting local authorities as dozens of police officers searched for the suspect. The FBI’s Seattle office said on Twitter that it “has no information to suggest additional attacks planned” in Washington state but did not elaborate.

Gov. Jay Inslee said tragedy had struck the state.

“We urge residents to heed all safety and detour warnings. Stay close to your friends and loved ones as we await more information and, hopefully, news of the suspect’s capture,” Inslee said in a statement.

The Cascade Mall is an enclosed shopping mall that opened in 1990, according to the mall’s website. It features J.C. Penney, TJ Maxx, and Macy’s stores, among other stores, restaurants and a movie theater.

The Associated Press contributed to this report.