BERNE — First responders revived three people who had overdosed in a car in the middle of Route 156 Thursday afternoon, Albany County Sheriff Craig Apple said.

One of the individuals had no pulse and was "basically dead upon arrival" when first responders arrived to the scene at about 4 p.m., Apple said.

The incident occurred in the 2100 area of Route 156, also known as Berne-Altamont Road, he said. An approaching driver saw the car stopped in the middle of the road and peered inside, he said. When they saw everyone appeared to be unconscious, they called 911.

Thursday's incident was one of two that had upstate officials concerned about dangerous street drugs.

The Sullivan County Sheriff's Office says marijuana seized in a Walmart parking lot in the town of Thompson Monday tested positive for fentanyl, a potent synthetic drug blamed for numerous overdose deaths. The sheriff's office says it was the first time the powerful opiate was found in marijuana in the area.

In the Albany County case, emergency workers used Narcan, a drug that reverses an opioid overdose, to revive the three.

Two of the occupants were from the Greene County town of Catskill, and the other was from the town of Freehold.

The driver, 41-year-old Vincent Oshana, of Catskill, was charged with DWAI-drugs.

All three are recovering at area hospitals, Apple said.

"For three people in a car to go down — that's not a good sign," he said. "The first thing that crosses my mind is, oh boy, let's start watching out for a bad batch, for other possible overdoses."

Apple said he has communicated with other local agencies and hasn't heard anything yet about any recent overdoses.