Authorities are investigating three similar Northwest D.C. bank break-ins, during which the suspects made holes in walls.

The most recent of the burglaries occurred early Friday morning in Georgetown. About 2 a.m., officers went to the M&T Bank at 1420 Wisconsin Ave. because an alarm had been activated. The suspect broke into an adjacent, vacant building and then made a sizable hole in the wall to get into the bank, according to D.C. police and the FBI.

Nothing appeared to have been taken from the bank. The suspect was described as a man wearing a white Tyvek suit and a blue baseball cap.

The other two break-ins took place at a bank in the Woodley Park neighborhood.

On Aug. 17, at about 2:30 a.m., at least one person wearing a white Tyvek suit and a black mask and gloves broke into a vacant business at 2633 Connecticut Ave. NW and then broke through a wall and into the neighboring Bank of America at 2631 Connecticut Ave. A similar incident took place in the early-morning hours on May 24, 2011, at the same bank and involved two suspects, authorities said.

In both cases, nothing was found missing from the bank.

The two incidents this month have been the only two bank break-ins in the District this year, FBI spokeswoman Lindsay Godwin said. There have been six bank robberies in the District this year.

Godwin said authorities are investigating whether the three break-ins were related.

Anyone with information can call the FBI at 202-278-2000 or D.C. police at 202-727-9099.