A three-alarm house fire displaced nine Woodburn residents after the home's heating devices accidentally caught fire Thursday morning.

Volunteers from the Woodburn Fire District responded to a house fire at a multi-family home along the 700 block of Harrison Street at 6:02 a.m. Additional responders from Mount Angel, Aurora and Hubbard, along with Woodburn Police joined soon after and helped to secure and care for the residents, who were asleep when the fire began.