A 65-year-old man suffered burns to his legs after his pants were set on fire on a subway platform in Times Square early Monday, cops said.

The injured man was found on the platform at the 42nd Street station just after 3 a.m. after police responded to a 911 call about an assault.

Police are still probing whether someone attacked the man or if he set himself alight.

The man was treated on the platform of the northbound 1, 2, 3 train before being taken to Weill Cornell Medical Center in a stable condition, police said.

No arrests have been made.

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