PORT-AU-PRINCE, Haiti - Police in Haiti are investigating the killing of a Swiss woman whose beaten body turned up in the back seat of a Jeep in northern Haiti.

Michel Martin of the United Nations police department says the body of the 45-year-old woman was found Tuesday near the town of Grande Riviere du Nord. She had been tied up and had a wound to her head.

She had been working for a Zurich-based non-profit named the Black Rain Group, which operates an orphanage and home for the aged. A group spokeswoman confirmed the death, but said she could not give her name ahead of a formal statement.

Neither police nor the group released her name.