Federal investigators are now involved in the probe of five bank robberies spread over Middlesex and Ocean counties.

Surveillance photo of suspect at the robbery of a Columbia Bank branch in Edison (Crime Stoppers of Middlesex County)

According to Crime Stoppers of Middlesex County the FBI has joined the search for a suspect is described as white or Hispanic, about 5'4, tall with a medium build. He makes threats to the tellers and has made off with undisclosed amounts of cash from banks in Edison, Brick and Toms River from October to December. The FBI is investigating along with local and state police.

In each incident, the man used several hats, hoods and even wigs to try to conceal his identity.

Anyone with information regarding these incidents should contact Crime Stoppers of Middlesex County at 800-939-9600.