MEXICO CITY (AP) Authorities in the northern Mexico border state of Sonora have found eight bodies in two clandestine burial pits.
Sonora state police say they were acting on a tip when they found the pits along a dirt road near the city of Navojoa.
The bodies found Monday include six men, one woman and a girl. Investigators say they may have died as long as a year and a half ago.
The causes of deaths are being investigated.
Drug cartels in Mexico frequently use such pits to bury executed rivals.
