A fire in a Northeast Philadelphia apartment building reached four alarms before it was finally extinguished almost four hours after it ignited.

In its wake, three residents were injured and treated for smoke inhalation at Aria Health Frankford. The American Red Cross reportedly assisted roughly 100 displaced residents.

The fire, on the 9100 block of Academy Road near Holme Avenue in Torresdale, started in the building's basement just before 5 p.m. and quickly spread to all three floors of the Rita Grace Manor apartment complex, according to emergency radio reports.

A temporary shelter was set up at Abraham Lincoln High School for the displaced residents.

The Red Paw Relief Team, which assist pets in fires, reported that it was helping six cats, two dogs, two snakes, and one rabbit with their owners. Nine cats and one dog were still missing as of 8:30 p.m.

The cause of the fire has not yet been determined.

Tommy Rowan is a reporter for Philly.com.

Robert Moran is a reporter for the Inquirer.