‘Underweight’ beluga whale in France’s River Seine near Paris prompts rescue effort

Drones used to track mammal in worrying' health amid struggle to guide it back to Channel

A beluga whale that swam up the River Seine in France appears to be underweight and officials are worried about its health, regional authorities say.

The protected species, usually found in cold Arctic waters, had made its way up the waterway and reached a lock about 70km (44 miles) from Paris.