The stabbing happened about 10 minutes after a woman was shot and killed at the Red Line stop at 69th Street on the South Side.

CHICAGO (WLS) -- A man was stabbed on a CTA Red Line train in the Loop, according to Chicago police. The stabbing happened at about 9:57 p.m. on the train near CTA's Red Line Monroe Station on State Street, according to police.

A man got into a quarrel with another man on Van Buren Street near Dearborn Street, and the second man stabbed the first in the chest and arm, police said.