A woman was killed after her body was found engulfed in flames in an F line train car Sunday morning in Coney Island, according to police.

Police determined that the incident was a homicide.

Police say an unidentified woman was sleeping on a stationary F train at the Coney Island-Stillwell Avenue Subway station when an unknown man lit her on fire at 7:29 a.m.

The suspect is described as a man, 5 feet 6 inches tall,150 pounds, and approximately 25 to 30 years old. He was last seen wearing a grey hoodie, blue jeans, a dark knit hat with a red band and brown boots.

Police say they put out the fire shortly before she died from her injuries at the scene. Alcohol bottles were found near her body.

The 5 and 6 platform were roped off with police tape as of early Sunday afternoon.

Officers were on scene covering up the train car with a tarp.

F trains are running with delays in both directions, according to the MTA.

Police say no other passengers were hurt in the fire.

Anyone with information is asked to call NYPD Crime Stoppers Hotline at 1-800-577-TIPS.