Firefighters investigate suspicious fire that ripped through central Fresno apartment

FRESNO, Calif. (KFSN) -- Firefighters are investigating a suspicious apartment fire that burned Friday night in central Fresno.

Crews say five people evacuated the two-unit apartment complex at Terrace and Bond at around 11 p.m.

The residents told firefighters the fire started when a mobile heat in the home malfunctions. Investigators say crews were met with heavy flames in the home, which is not typical for a heater fire.

Firefighters saved one of the apartment units, but the other was severely damaged.

Fire investigators haven't determined the cost of the damage or how many people lived in the duplex.