NEW YORK (Reuters) – A 33-year-old Guatemalan national was arrested on suspicion of murder and arson after a woman was burned to death on a New York subway over the weekend, police and federal officials said on Monday.

Sebastian Zapeta was arrested about six hours, police said, after he used a lighter to set fire to the clothing of a woman who was apparently dozing on a stationary F train at the Coney Island-Stillwell Avenue subway station in Brooklyn.

The suspect entered the USA without authorization in 2018 and was deported to Guatemala a few days later. It is unclear when he illegally re-entered the country, the US Department of Homeland Security said in a statement on Monday.

Police said there appeared to be no prior interaction between the attacker, a Brooklyn man, and the victim, who was not identified.

Zapeta was in custody and it was not immediately clear whether he had an attorney. He was arrested on a subway on Sunday afternoon and had a lighter in his pocket, police said. He was scheduled to appear in court on Monday or Tuesday to face the charges.

Subway workers and police officers patrolling the station used fire extinguishers to extinguish the flames that engulfed the woman, who was pronounced dead at the scene.

“The depravity of this terrible crime is unimaginable, and my office is committed to bringing the perpetrator to justice,” Brooklyn District Attorney Eric Gonzalez said in a statement Monday. “This cruel and senseless act of violence against a vulnerable woman will have serious consequences.”

The U.S. Department of Homeland Security statement said it would begin deportation proceedings again once Zapeta is released from custody in New York, which could result in a lengthy prison sentence if convicted.

(Reporting by Jonathan Allen in New York; Editing by Howard Goller)