CHICAGO —

A man doused a woman with a fluid and set her on fire on a Chicago L train, leaving her in critical condition, authorities said Tuesday.

The attack happened Monday night on a Blue Line train, police said. Witnesses told investigators that the 26-year-old woman and a man believed to be in his 40s began arguing, and that the man then doused her with a liquid and set her alight.

When the train pulled into the Clark and Lake stop, the man fled and the woman stumbled out and fell on the ground, police said. She was taken to a hospital. Police didn't release her name.

No arrests had been made in the case as of Tuesday morning, police said. Hospital officials didn't immediately respond to a request for an update on the woman's condition.

Like many other major cities, Chicago has se

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