FBI searches for Wilmington serial bank robber

WILMINGTON (WPVI) -- The FBI has joined the search for a serial bank robber in Wilmington.

Authorities say the latest robbery occurred Wednesday at the WSFS bank on North Union Street.

Authorities believe he robbed that same bank two other times in May.

They think he's the same man who robbed a PNC branch on Delaware Avenue on May 13th.

A reward is being offered for information that leads to an arrest.