MEXICO CITY—The slashed-up bodies of five men were found on a roadside in southern Mexico on Tuesday, authorities reported. The bodies were lying on a road near the city of Iguala in the Pacific coast state of Guerrero. The state prosecutors’ office said all the men had knife wounds on their faces and necks, suggesting their throats had been cut. The bodies were found in an area that has been the scene of frequent turf battles between drug gangs. There are also vigilante-style forces active in the area that is sometimes associated with the gangs. Guerrero is home to the Pacific coast resort of Acapulco, farther south. Also Tuesday, authorities announced that skeletal remains found in November in the northern border state of Sonora were from 25 different people. Volunteer searchers found 14 clandestine burial pits that contained bones, some burned, and decomposing bodies in a patch of scrubland. The …