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Thousands of migratory cranes have been killed in a severe outbreak of bird flu in France.

The outbreak, which began last month in Grand Est, France, has prompted wildlife authorities to deploy emergency teams and farmers to cull infectedbirds.

Up to 10,000 cranes have died in the region, according to the French Biodiversity Office (OFB), and more than 5,000 carcasses have been collected near Lac du Der, a major stopover site for the species during their annual migration.

According to Vincent Montibert, head of Haute-Marne Departmental service of French Biodiversity Office, the bird flu outbreak is unprecedented.

He said mobile brigades have been deployed and poultry

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