A man set a cup of liquid on fire and tossed it at fellow subway rider in New York City, setting the victim's shirt ablaze and injuring him.
The random attack happened on a No. 1 train in lower Manhattan on Saturday afternoon, city police said, adding that the suspect was in custody.
Police said the victim suffered burns to his torso.
The suspect, a 49-year-old man, was arrested a short time later after police tracked a phone he allegedly stole from another subway rider to his location, authorities said. Police have not announced the charges against the man, and it wasn't immediately clear if he had a lawyer would respond to the allegations.
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Police are also investigating a similar encounter in February when a man threw a container with a flaming liquid at a group of people on a subway platform in the West 28th Street station.
Transit officials said trains were delayed as the incident was being investigated.
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The investigation is ongoing.