The FBI’s Chicago Field Office is investigating a bank robbery that unfolded in the Loop on Tuesday afternoon and it may be just one of several robberies committed by a man who agents are calling the “Bare-Chested Bandit.

FBI hunting ‘Bare Chested Bandit’ bank robber who changed disguises for every heist - The suspect is known to change clothes on public transportation

The suspect, a man in his 30s, is accused of robbing three banks in the Loop since Sept. 16. He was apparently seen on surveillance changing clothes on public transportation after a robbery.

The FBI is searching for an armed suspect wanted in connection to a robbery at the First Federal Bank in North Kansas City.

The FBI is looking for a Chicago bank robbery suspect agents are calling the "Bare-Chested Bandit." The FBI-Chicago Field Office released images of the male suspect Wednesday in the hopes of identifying the wanted bank robber.

The FBI is investigating a bank robbery Tuesday afternoon at a Chase branch in Barrington. The robbery occurred at about 1 p.m. at the bank branch located on the 100 block of West Northwest Highway.

Midwest City Police and the FBI seek two suspects after an ATM service worker was robbed of their gun; no money was taken. The suspects fled in a sedan with Texas plates.

Authorities said it was the first incident in recent years in which they've observed a suspect changing clothes on public transportation.

The FBI is asking for the public’s help in identifying a bank robbery suspect, known as the "Bare-Chested Bandit," who is believed to have carried out three heists in the Loop since mid-September.