A Chinese county official appears to have killed himself during an investigation into the deaths of 21 runners last month during an ultramarathon, state television reported Friday.
Camping, hiking and other activities that could damage cultural relics, buildings, structures and natural landscape have been banned in Dunhuang Mogao Grottoes Conservation Zone, Dunhuang Academy in Northwest China s Gansu Province, which oversees the grottoes, announced on Tuesday.