Easton police say a Palmer Township man was arrested on drug charged Monday after calling to report that his friend was unconscious.

According to the Express-Times, 32-year-old Joseph Kowal had called police around 9 p.m. after finding his friend unconscious on the banks of the Delaware River near the Route 22 bridge. 

When police responded, they found Kowal was carring heroin and drug paraphernalia. He was arrested on a bench warrant for probation violation, and will be charged via summons with drug possession.

Police say Kowal's friend -- who had regained consciousness by the time officers arrived -- may have overdosed, and could be charged with drug offenses.