A 4-year-old girl and her parents have been found dead inside a public bathroom in a northern Mexican beach town.

A statement from the Baja California state prosecutor's office says the parents had been beaten and possibly stabbed. The toddler's body showed no outward signs of violence.

Police have not yet determined the cause of death for the three, or a possible motive for their killings.

Wednesday's statement said the family was found Tuesday in the Pacific coast town of Ensenada. It said the parents were seasonal farm workers from the southern state of Oaxaca.