Firefighters extinguished two house fires in Temple Hills on Thursday, one of which critically injured a woman, officials said.

About 11 a.m., firefighters went to a house in the 3500 block of Everest Drive and found fire showing from the structure's first floor. Firefighters put out the flames within 15 minutes, and they also removed a woman from the first floor of the home.

The woman, who is about 60 years old, was not breathing and did not have a pulse. After paramedics performed CPR and other emergency pre-hospital care, the woman was taken to a hospital in critical condition. She was then taken to another hospital for additional treatment, Prince George's County Fire/EMS spokesman Mark Brady said.

The cause of the fire is under investigation, and fire loss is estimated at $75,000.

A little more than an hour after the first fire occurred, firefighters went to the 2800 block of Curtis Drive and found a home with a fire in its basement. Firefighters extinguished the flames within 15 minutes, and no one was injured, officials said.

Investigators believe that the fire was caused by an electric space heater that a husband and wife left on when they went to run errands. Fire loss is estimated at $75,000.