Person of interest questioned after woman set on fire on Chicago train, police said

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A person of interest was questioned Tuesday afternoon after a woman was set on fire Monday night on a Blue Line train, Chicago police said.

Shortly before 9:30 p.m., a 26-year-old woman was riding a CTA train in the 100 block of West Lake Street when she was involved in an argument with a man in his mid-40s. The man poured liquid on the victim before setting her on fire, police said.

The man exited the train when it came to a stop, fleeing the scene. The victim also exited the train and fell to the ground, where the fire was extinguished before police arrived.

The woman, who suffered severe burns to her body, was taken to Stroger Hospital, where she was listed in critical condition, police said.

Tuesday afternoon, police said a person of in