By CBS 2 Chicago Staff

CHICAGO (CBS) – A 67-year-old man was fatally stabbed on a CTA bus near 86th and Cottage Grove.

Chicago Police say the 67-year-old got into an argument with another man on the bus when the man took out a knife and stabbed the 67-year-old in the chest.

The 67-year-old was taken to University Of Chicago Hospital where he was pronounced dead.

Police have someone they are questioning as detectives continue to investigate.

CBS 2 Chicago Staff