By CBS 2 Chicago Staff

CHICAGO (CBS) — A man stabbed an assailant who was attacking him early Tuesday at the Sedgwick Brown Line station on the city’s Near North Side, police said.

At 6:47 a.m., the 45-year-old man was entering the turnstile at the station on Sedgwick Street just below North Avenue when another man, 46, followed him in and began physically attacking him, police said.

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The assailant at one point hit the victim with a cone, police said.

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The victim eventually stabbed the assailant in the upper chest, police said.

The assailant was taken to Northwestern Memorial Hospital in good condition, police said. The victim was not injured.

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Police said the stabbing was deemed to have been in self-defense. Charges against the assailant who was stabbed were unknown Tuesday afternoon, and Area Three detectives were processing the case.

CBS 2 Chicago Staff