MEXICO CITY — Wild dogs mauled and killed four people whose bodies were found over the past two weeks in a park on the edge of Mexico City, authorities said Monday. In one case, a teenage girl frantically called her sister with her cellphone to plead for help as the attack took place.

Neighbors of the Cerro de la Estrella, a partly wooded, hilltop park surrounded by the city’s poor and populous Iztapalapa district, found the bodies of a 26-year-old woman and a 1-year-old child in the area on Dec. 29, authorities in Mexico’s capital said.