A firefighter works from above as smoke billows from the apartment building.

Firefighters battle a 5-alarm blaze at 45 Hill Street.

Firefighters fight a 5-alarm blaze at 45 Hill St. in Biddeford.

A firefighter aims a hose at the flames from the top of an extension ladder.

Misty Huber, a resident at 45 Hill Street, watches as firefighters battle a 5-alarm blaze early Monday. Huber lost a kitten in the fire.

Firefighters are shrouded in smoke as they battle a 5-alarm blaze at 45 Hill St. in Biddeford Monday.

A firefighter takes a break while monitoring a 5-alarm blaze at 45 Hill Street.

Matt Tenney carries his one year-old cat, Carlos, who was rescued by firefighters along with his brother, Paddington, in carrier at left, from their apartment at 39 Hill Street.

People stand near a hose bringing water from the top of Hill Street in Biddeford to fight a 5-alarm blaze.

Firefighters battle a five-alarm blaze in an apartment building in Biddeford.

Firefighters bring water to an entrance at 45 Hill St. in Biddeford where a 5-alarm blaze broke out early Monday morning.

Donna Miller watches as a 5-alarm blaze destroys an apartment building in Biddeford Monday morning

Onlookers watch and photograph while firefighters fight a 5-alarm blaze at 45 Hill St. in Biddeford.