Updated

Law enforcement authorities are looking for information on a bank robber the FBI calls "The Man in the Rubber Mask."

FBI spokeswoman Ayn Sandalo Dietrich says he's believed to have robbed at least four Seattle banks since mid-October, most recently a Key Bank branch in the Ravenna neighborhood last Friday.

The man is thought to be in his late 50s and about 5 feet 5 inches tall. For each robbery, he's worn a different Halloween-type costume mask, with gloves, a baseball cap, a hooded sweatshirt or jacket and jeans. The robber carries a handgun and most recently aimed a laser on the gun at bank employees.

He's considered armed and dangerous.