Officials said Friday about 160 climbers are trapped on one of Southeast Asia's highest mountains after an earthquake struck eastern Borneo on Friday. The magnitude-6.0 quake hit early morning, damaging several buildings in Ranau and causing rocks to slide down Mount Kinabalu, Malaysia's official Bernama news agency reported. "They could not come down as the trail has been rendered impassable by falling rocks," said Masidi Manjun, the tourism minister for the Malaysian state of Sabah. At least four people were injured and two instructors are missing, Masidi said. Helicopters are unable to reach the climbers due to poor weather conditions.