MATTESON, Ill. — USPS is looking for the man suspected in the armed robbery of a mail carrier in Matteson.

The U.S. Postal Inspection Service is offering up to $25,000 for information leading to the arrest and conviction of the suspect responsible for the robbery that occurred on Oct. 13.

SEE ALSO: 42-year-old USPS carrier robbed in Bucktown

The suspect fled on foot southbound on Main Street. He is considered to be armed and dangerous.

Authorities described the suspect as a male in his early 20s with a medium-dark skin tone, wearing a black ski mask, black sweatshirt, red jogging pants, and carrying a black or blue gym bag over his shoulder.

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Anyone with information should call 1-877-876-2455. All tips remained confidential.