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.

READ MORE: Chicago Weather: Flight Cancellations, Delays As First Alert Forecast Calls For 1-3 Inches Of Snow

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

READ MORE: Chicago Weather: Snow Causing Dangerous Driving Conditions; First Alert Forecast Calls For Up To 3 Inches

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.

MORE NEWS: Woman Charged With Arson, Theft In Lansing Walmart Fire

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