Historic Chinese tombs in danger of collapse

Tombs almost 1000 years old in western China are in danger of collapse because of natural erosion and man-made damage, Chinese state television said.

The Western Xia Tombs in Ningxia house kings of an empire that once stretched to Tibet.

Years of wind, rain and neglect has left holes up to 2m-deep in the structures, which resemble miniature versions of Egypt's pyramids. A 10m-long wall had already crumbled.