A fifth person has died following a mass shooting at the Cascade Mall in Burlington, Washington, police say.

The suspected gunman is still at large.

Police have released a picture of the gunman, who fled armed with a rifle.

The Cascade Mall and nearby shops, located in Burlington, near Seattle, were evacuated and police have asked the public to stay away. The reason of the attack is not clear.

Image source Washington State Patrol

Police described the suspect as a “Hispanic male wearing grey”.

The man was seen heading towards the Interstate 5.

Washington State Patrol spokesman Mark Francis said the fatalities had taken place inside Macy’s department store.

Sgt. Mark Francis confirmed the death of a fifth victim, a man, on September 24. The other four were women.

He said the gunman had left the scene before police arrived and was last seen walking towards a highway.

Washington Governor Jay Inslee, said the shooting was a tragedy.

“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.”

Emergency management officials have told residents to stay inside with their doors locked and avoid the area near the Cascade Mall. Drivers are being urged to keep nearby major roads clear.

The FBI, which is assisting in the investigation, says there is no evidence that further attacks are planned in Washington State.

Burlington is about 65 miles north of Seattle.