Police officers throughout South Jersey are on high alert after the escape of a prisoner in Cumberland County Friday.

New Jersey State Police say David D. Riley, 34, of Bridgeton escaped police custody Friday morning in the area of Cornwell Drive and Old Deerfield Pike in Upper Deerfield Township, Cumberland County.

Police say he was not wearing handcuffs and is considered to be armed and dangerous.

If you know of his whereabouts, you're urged to call 9-1-1 or the New Jersey State Police Bridgeton Station at 856-451-0101.