LEVITTOWN, Pa. (CBS) – The Red Cross is assisting seven families Sunday night after a one-alarm fire ripped though a Levittown apartment complex Sunday.

READ MORE: 'THIS IS HOME': Watch Zach Ertz's Emotional Goodbye To Philadelphia After Being Traded To Cardinals

The fire happened at Mill Creek Apartments in the 7000 block of Mill Creek Road at about 3:15 in the morning.

Authorities say one person was transported to Lower Bucks Hospital in unknown condition.

READ MORE: Man Arrested After Road Rage Shooting Outside Allentown Day Care, Police Say

The Red Cross is providing the affected families, which include 17 people, with money for food, clothing and lodging.

At this time, the cause of the fire is unknown. Authorities are investigating.

MORE NEWS: Eagles Trade TE Zach Ertz To Arizona Cardinals For CB Tay Gowan, 2022 5th-Round Pick