Several people were displaced from their homes early Monday when an attic fire erupted in a Berrylane Court duplex.

Firefighters were dispatched to the scene shortly before 3 a.m. Monday to investigate a report of smoke rising behind a building on Berry Court Lane.

Arriving at the scene, Assistant Fire Chief George Gomola reported “ fire in the rear of the two family structure and heavy smoke coming from the attic.”

Three residents of the affected side of the duplex had already safely left the building, and firefighters helped a mother, her daughter and their pet cat leave the adjoining unit without incident.

Engine 2 crew led by Lt. Joe Galla stretched a hose line behind the structure and extinguished the fire that had started on the back porch and spread into the attic, according to the fire report. Another fire crew openeda large hole in the roof that allowed trapped heat, smoke and fire to escape. Others led by Lt. Brian McHugh opened ceilings inside the apartment and quickly extinguished the attic fire from below. Lt. Pat Barry led his fire crew into the adjacent unit to make sure the flames had not spread there.

The cause of the fire is being investigated by the Fire Marshal’s office.

The Red Cross was called to the scene to assist residents of both units displaced by the fire.