Detectives are investigating after Seattle Fire Department officials determined a couch was intentionally set on fire Monday evening inside a Capitol Hill apartment.

Seattle Fire Department firefighters were dispatched to a fire inside of an apartment building in the 400 block of East Howell Street at 7:50 p.m. Monday. When they arrived a resident had already used a fire extinguisher to contain the flames to a couch in the lobby of the building. The 31-year-old man who put out the fire spoke with officers and said that he heard a crash in the lobby and went to investigate the noise and found the couch already on fire.

Seattle police arson detectives are now investigating and will work with the Seattle Fire Department to determine what caused the fire. Detectives have asked that anyone with information call 206-684-8980.