The FBI is now on the case of the guy who held up the Lowell Five Cent Savings Bank at Stadium Plaza last week, and they say he has hit at least two other banks as well.

The FBI says the same man is suspected of holding up the Merrimack Valley Credit Union on Osgood Street in North Andover on Aug. 17.

Here is a picture of him from that heist.

The FBI also suspects the same man held up Citizen's Bank on Main Street in Sharon on September 1.

Here is a picture of him in that bank.

The robbery in Tewksbury was a week ago on the 19th. He passed a note to a teller demanding money from several drawers, and then escaped on foot.

Here are the two pictures Tewksbury PD put out from the bank.

This one is from the bank lobby.

The guy in the photos is described as a whilte male, in his late 20's to early 30's, between 6'0 and 6'3, with a heavy build.

Anyone with information on the case is asked to call the FBI at (617) 742-5533.