Ukraine and Russia have not confirmed the truce in Russian-occupied Oleshky, where residents have had to eat garden weeds to survive.

Another 10 people are injured in the southern Karak governorate, and a manhunt is now under way.

Once the world's largest producer of mink pelts, the nation's industry has declined in recent years.

Anti-terrorism police have taken up the investigation into the incident in Trappes, to the west of Paris.