ALBANY, N.Y. (AP) — Police in upstate New York are warning of dangerous street drugs after marijuana laced with fentanyl was confiscated in a parking lot and three people were found unconscious in a car in a separate incident.

The Sullivan County Sheriff's Office says marijuana confiscated in a Walmart parking lot in the town of Thompson Monday tested positive for fentanyl, which has played a role in numerous overdose deaths.

The sheriff's office says it was the first time the powerful opiate was found in marijuana in the area.

In a separate incident Thursday in Albany County, Sheriff Craig Apple says first responders revived three people who had overdosed in a car in the middle of a road. Another driver came upon the car in the town of Knox and called 911.

“With fentanyl laced marijuana now confirmed to be in New York State, I am extremely concerned for the safety of anyone using marijuana”, said Oneida County Sheriff Rob Maciol. “We have seen the tragic results of what heroin and fentanyl mixed together can do and I fear for what will be happening now that it’s being mixed into marijuana."

More From WIBX 950