CHICAGO (CBS) — A 50-year-old man was stabbed on a CTA Red Line train Sunday morning just north of the Addison Street station in Wrigleyville.

About 8 a.m., the man was traveling southbound on the train in the 900 block of West Addison Street when a 23-year-old passenger walked up to him unprovoked and menacingly waved a small knife before stabbing him in the left hip, causing a small laceration, according to Chicago Police.

When police arrived, the 23-year-old attempted to run away and was taken into custody following a short chase, police said. Charges were pending Sunday.

The 50-year-old was treated at the scene by Chicago Fire, but refused further medical attention, police said.

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 This material may not be published, broadcast, rewritten, or redistributed.)

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