A suspect is in custody after the incident on an F train in Brooklyn on Sunday morning. Officers found a woman 'fully engulfed in flames.'

A sleeping woman was set on fire on a New York subway train by a man who appeared to sit and watch her burn to death.

A man has been arrested in New York in connection with the death of a woman who was set on fire on a subway train in Brooklyn. Police Commissioner Jessica Tisch described Sunday's incident as "one of the most depraved crimes one person could possibly commit against another human being".