CHICAGO (CBS) – A 48-year-old man was hospitalized after being stabbed on a CTA platform in the Loop Tuesday morning.

Chicago police said around 3:30 a.m., the man was sitting on the bench on the platform, in the 100 block of North Clark Street, when an unknown man pulled out a knife and attacked him.

The victim suffered a cut to the left abdomen and was taken to Northwestern Hospital in good condition.

No arrests were made.

Area 3 detectives are investigating.