Investigators are looking for the cause of a fire that forced three people out of their New Castle home early Thursday.

A 9-1-1 caller told dispatchers that the porch of a house on the 500 block of East Lutton Street shortly before 3 a.m. and there may be people still inside.

The first firefighter to arrive reported that flames had spread throughout the porch.

Crews from the Shenango Township and Hickory Fire Departments were called out to help put out the flames.

No one was injured, but firefighters had to help one person get out of the home.

Damage was extensive enough that the three adults who lived at the home needed to find another place to stay.

The Red Cross has been called to help the residents.