NORRIDGE (CBS) — A man robbed a northwest suburban bank on Monday, the third bank he is believed to have robbed in the past three days.

The suspect entered the Charter One Bank branch at 4411 N. Cumberland in Norridge about 1 p.m. Monday and gave a note to the teller demanding cash, according to the FBI.

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He ran out after receiving an undisclosed amount of cash, the FBI said. He threatened to harm the teller but no one was injured and no weapon was displayed.

The same man is believed to have robbed two other banks on the two days preceding the Norridge robbery, the FBI said.

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The first occurred at 4:52 p.m. Saturday at the TCF Bank branch at 4734 N. Cumberland Ave., and the suspect also attempted to rob a TCF Bank branch at 819 S. Elmhurst Rd. in Des Plaines at 11:37 a.m. Sunday.

The suspect is described as a white man, 40- to 50-years old, 5-foot-6 to 5-foot-7 with balding blonde hair. He wore the same dark, long-sleeve flannel shirt each time.

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

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 This material may not be published, broadcast, rewritten, or redistributed.)