LACKAWANNA, N.Y. - Seven people were hurt in an apartment fire early Saturday morning.

It happened just before 3:30 a.m. in a 2 1/2 story building located at 79 Ingham Avenue.

The Lackawanna Fire Chief tells 2 On Your Side that one woman is in critical condition and being treated for smoke inhalation.  Firefighters rescued her and a three-year-old boy from their apartment.

The other victims have minor injuries, and one person possibly broke a leg.  The chief said some tenants jumped from the second floor to escape the smoke and flames.

Firefighters led four others down a ladder to safety.

There are four units in the building.  Three of the families who live there have children.

The fire started in a common hallway, and the chief called the fire suspicious.

Erie County fire investigators are assisting the Lackawanna Fire Department as they search for a cause.

The fire caused about $50,000 in damage.