The parents of a 20-month-old girl left her on a beach for 2 hours on Tuesday while they went jogging with no clothes on, police say.

Cody Bourgeois, 32, and Monique Bourgeois, 35, were arrested and charged with child desertion and obscenity after a man found their daughter alone, thirsty, and covered in bug bites on Holly Beach in Louisiana.

It wasn't until 2 hours later, however, that the girl's parents were found 2 to 4 miles away, streaking on the beach. The local sheriff suggested "they were high on something."

Child protective services are investigating the incident.