PITTSBURGH (KDKA/AP) — Several people were to the hospital overnight after they were overcome by carbon monoxide at a duplex in Pittsburgh’s Sheraden neighborhood.

Authorities say that six people, including three children and a pregnant woman, were taken out of the duplex on Huxley Street around 1 a.m. There is no word on their conditions, but they were taken to UPMC Presbyterian for treatment.

According to authorities, carbon monoxide levels in the duplex were three times higher than they should have been.

According to the Associated Press, crews from Equitable Gas were also called to the scene. Utility crews say they believe there may have been a combustion problem with the home’s boiler. Gas service was also shut off.

A neighbor was also evacuated from her home.

“They said it was high in my house and I had to get out,” said resident Teresa Bynul. “I wasn’t sick, but all of them went to the hospital.”

While authorities were on the scene, they say they also removed a dog that appeared to be malnourished.

Bob Gosser, of the Western Pennsylvania Humane Society, said the dog was kept in the basement, which was also where the carbon monoxide levels were the highest.

“We have the malnourishment, the unsanitary conditions in the basement and the carbon monoxide,” said Gosser. “I did go down in the basement and there is a fair amount of feces on the floor. It’s a cement floor, dry. I saw one bag of food that was sort of chewed up. I mean, there’s no food down there.”

Stay with KDKA for the latest on this developing story.

Watch & Listen LIVE