Investigators are trying to determine if a deadly form of synthetic heroin that is being blamed for 22 overdose deaths in Western Pennsylvania originated in New Jersey.

A Clairton, Pa man was found in possession of heroin stamped with the name "Sky High", which Pennsylvania Attorney General Kathleen Kane says could be related to heroin marked "Theraflu" and "Bud Ice" which was responsible for the deaths.

The Allegheny County medical examiner's office and other authorities have said heroin bags stamped with those two labels have also tested positive for fentanyl, a synthetic morphine substitute that can be up to 100 times stronger than heroin. That blend is blamed for the deaths.

(Ocean County Prosecutor's Office)

Earlier this month, several overdose victims in Ocean County were found with heroin packets stamped with a "Bud Light" label.