A 20-year-old black woman told police she was set on fire by three men who wrote the initials KKK and a racial slur on her car in northeastern Louisiana.

Louisiana State Police spokeswoman Lt. Julie Lewis says Sharmeka Moffitt was found with burns on more than half of her body when police responded to her emergency call Sunday night.

Moffitt was in critical condition Monday at a hospital. Lewis said the FBI is investigating the attack as a possible hate crime, but that no arrests had been made as of late Monday.

Moffitt told police the men doused her in a flammable liquid and set her on fire in a town park. Lewis said she extinguished the fire using water from a spigot before a police officer arrived.