CHICAGO (CBS) — A man has been charged with robbing a gas station while armed with a replica gun early Saturday in west suburban Hinsdale.

Milan Crnovich, 24, faces one felony count of aggravated robbery, according the DuPage County state’s attorney’s office.

About 1 a.m. Saturday, Crnovich entered the Mobil station at 8 W. Chicago Ave. in Hinsdale while the clerk was outside, prosecutors said. He was wearing a white ski mask and a “distinctive” jacket.

When the clerk returned, Crnovich handed him a note with the word “gun” written on it and then showed him a silver gun, prosecutors said.

The clerk gave Crnovich $180 and he ran away, prosecutors said. The clerk then called police.

The next day, the clerk called police again and told them the suspect had returned, prosecutors said. Officers found Crnovich about a block away from the gas station.

He claimed he was looking for his backpack, and when officers helped him find it, they found the white ski mask and jacket he wore during the robbery inside.

Officers patted Crnovich down and found a silver pistol in his waistband, which turned out to be an Airsoft pistol, prosecutors said.

Crnovich, of the 5600 block of South Garfield Avenue in Hinsdale, was ordered held on a $200,000 bond, according to the state’s attorney’s office. He is next scheduled to appear in court Dec. 20.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2016. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)