Woman, 23, shot during fight on CTA bus in South Shore

Chicago police work the scene where a 23-year-old woman was shot while riding on a CTA bus in the 7100 block of South Merrill Avenue in the South Shore neighborhood on Tuesday. (Tyler Pasciak LaRiviere/Sun-Times)

A woman was shot during an argument on a CTA bus in South Shore.

The woman, 23, was in an altercation with a person, who opened fire about 8:10 p.m. while on the bus, Chicago police said.