Man stabbed and critically wounded during evening rush hour on Blue Line train in Loop

A man was stabbed and critically wounded on a Blue Line train in the Loop Thursday evening.

The man, 42, was on a train in the first block of South Dearborn Street when someone stabbed him in the leg and lower back about 5:15 p.m., Chicago police said.

He was taken to Northwestern Memorial Hospital in critical condition, police said.

A suspect was taken into custody, police said.

No charges have been announced.