The suspect pictured here is suspected of at least four robberies. (Credit: FBI)

The suspect pictured here is suspected of at least four robberies. (Credit: FBI)

CHICAGO (CBS) — A bank robber known for his aggressive behavior is wanted for up to four heists around Chicago over a two-week period.

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The “Bully Bandit” first struck on Nov. 28 at a North Community Bank branch at 1600 W. Chicago Ave. in Chicago.

In all four robberies, the Bully Bandit approached the teller window and demanded cash in a shouting, threatening manner, the FBI said in a news release. He has even pushed customers out of his way to get to the teller window or to get out the door after getting cash from the tellers.

The same individual is also believed to have struck a Chase Bank branch twice in the span of a week. The bank, located at 4440 W. North Ave., was robbed on Nov. 30 and Dec. 6. The latest robbery occurred Dec. 11 at the PNC Bank branch located at 6620 W. Ogden, in Berwyn.

The robber has worn a black jacket with a black hoodie underneath. He wore the hood pulled over his head and cinched tight around his face in an effort to conceal his identity. Witnesses reported that he kept the strings that tighten the hood in his mouth.

The “Bully Bandit” is described as a Hispanic male in his late 20s to early 30s, with black hair and brown eyes and a mustache, 5 feet, 7 inches tall with a medium build.

Anyone with information about the robberies is asked to call the Chicago office of the FBI at (312) 421-6700.