A woman and two children are expected to survive, officials said, after they were found unresponsive and pulled from an Upper Darby home that had a carbon monoxide leak on Saturday night.
According to police, officers responded along with medical officials on a reported medical emergency along the 200 block of Kingston Road at about 8:20 p.m. on Saturday.
Upon arrival, police said, first responders detected “a strong odor of gas” at the scene and they radioed in for support from area fire companies.
Once fire crews arrived, police said, firefighters, equipped with breathing apparatus and gas detectors, entered the building and found a woman and two children inside unresponsive.
The three people were removed from the building and they were taken to nearby hospitals where, officials said, they were expected to recover.
Others in the home at the time, police said, were able to escape the property on their own and were unharmed.
Inside the home, police said, fire crews detected carbon monoxide levels in excess of 1400 parts per million.
A typical home with a properly adjusted gas stove normally sees carbon monoxide levels of about 5 to 15 parts per million, according to the United States Environmental Protection Agency.
Officials said that the property was secured and ventilated and, following an investigation, the source of the gas leak was found to be a deteriorating chimney flu cap.
An investigation is still ongoing, officials said.