PHNOM PENH — Villagers in northwestern Cambodia unearthed what authorities say could be a mass grave from the Khmer Rouge era that contains skulls and the bones of corpses — some with legs bound by rope. The morbid discovery was made last weekend about 60 km from Siem Reap, home to Cambodia's famed Angkor Wat temples. Authorities said Monday that villagers were excavating land in a forested area when they discovered about 20 skulls and the remnants of skeletons. Nhim Sela, a Siem Reap military official, said the bones were found at the site of a former Khmer Rouge prison where hundreds were believed killed. An estimated 1.7 million people were killed during the regime's 1970s rule. — AP