| The bodies of 21 German soldiers entombed in a perfectly preserved World War One shelter have been discovered 94 years after they were killed.
The men were part of a larger group of 34 who were buried alive when a huge Allied shell exploded above the tunnel in 1918 causing it to cave in.
Thirteen bodies were recovered from the underground shelter but the remaining men had to be left under a mountain of mud as it was too dangerous to retrieve them.
Nearly a century later French archaeologists stumbled upon the mass grave on the former Western Front in eastern France during excavation work for a road building project. | 
