Two men were fatally stabbed in the US city of Portland after they came to the aid of two women who were being harassed because they appeared to be Muslim, police said. The attacker had been shouting ethnic and religious slurs at the women on a commuter train at the Hollywood transit station, the Portland police department said in a statement. Three men who intervened were stabbed, two fatally. A suspect was arrested shortly after he got off the train. The women left the scene before police could interview them.