Authorities evacuated several West Philly apartments early Friday morning after a gas odor was detected.
Residents from two apartments located near 46th and Spruce streets were forced from their homes around 12:30 a.m. when a malfunctioning heater caused an odor of gas to fill a duplex, officials said.
Crews detected a slight carbon monoxide reading.
The American Red Cross of Southeastern Pennsylvania is assisting the residents, who all made it out of their homes safely.
Police took a pregnant woman to the Hospital of the University of Pennsylvania for observation.
