YPRES, Belgium (AP) — Six British World War I soldiers have been reburied more than 100 years after they fell in a battle on Flanders Fields.

The bodies were discovered in 2013 in the city of Ypres, Belgium, and then embarked on a long journey of identification, some of it based on DNA provided by relatives. Only two of the six were identified. They were reburied on Wednesday.

The bodies of the unidentified will rest in the same Ypres Extension cemetery next to their comrades but in graves marked only as 'A Soldier of the Great War'.

The men had originally been buried and marked with a wooden cross but the graves disappeared in subsequent fighting.

Thousands of soldiers still remain buried deep in the mud in the battlegrounds of western Belgium.