Honolulu fire investigators have classified the cause of a two-alarm fire that ravaged a Nanakuli home as undetermined.

At 11:30 a.m. Wednesday, 11 companies staffed with over 30 firefighters responded to the fire at a single-story duplex located at 87-1740 Farrington Highway. When they arrived, smoke and flames were emerging from one of two separate units.

Honolulu Fire Spokesman Capt. David Jenkins said two occupants, a man and a baby, were home at the time and managed to escape without any injuries.

Firefighters brought the fire under control and extinguished it shortly after 12:20 p.m.

Though investigators determined the fire had started in a kitchen in one of the units, they couldn’t pinpoint the cause because of the extensive damage in the area.

Damage to the structure and its contents was estimated at $230,000.

The American Red Cross is assisting two families who were displaced by the fire.