CHICAGO (STMW) — A well-dressed man, with the exception of his trademark white baseball cap ,robbed a Loop bank branch Wednesday, his fourth suspected bank robbery this month.

The man, who in at least two of the robberies has worn a suit and tie, and in all of them has worn a white baseball or other style cap, robbed the First American Bank branch at 22 W. Monroe on Wednesday, according to the FBI.

No weapon was displayed.

The robber is described as a black man in his 40s between 5-foot-9 and 5-foot-11, weighing over 200 pounds.

The other bank branches he is suspected of robbing are: Burling Bank at 141 W. Jackson on Dec. 5; Citibank at 539 N. Michigan Ave. on Dec. 17; and Citibank at 111 W. Jackson on Dec. 19.

Anyone with information should call the FBI at (312) 421-6700.

There have been at least 215 bank robberies in the Chicago area this year, according to the FBI. There were 115 last year.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2012. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

Watch & Listen LIVE