Investigators say a man died while he was being taken into police custody Saturday night.
Police say they apprehended the unidentified man around 8 p.m. after following him into the Dalvis Grocery store on the 1500 block of W. Bristol Street in the Nicetown section of the city. According to police, the man was in possession of narcotics, though they have not yet revealed the specific drug.
As police had the man in handcuffs, investigators say he suddenly collapsed. Witnesses say they spotted officers giving him CPR. He was pronounced dead a short time later.
Investigators are in the process of interviewing witnesses to determine what exactly happened.
This story is developing. Stay with NBC10.com for updates.