The malnourished whale will now be transported back to the sea via the land route in a lorry with a cold room.
– It is a long and very technical rescue operation that requires a lot of skills, says Isabelle Dorliat-Pouzet, secretary general of the Eure department in Normandy.
Police officers and divers from the fire service started on Tuesday afternoon with a last attempt to save the four-metre-long beluga whale from the river.
On the night of Wednesday, it became known that the whale had been retrieved from the river.
The beluga, which usually stays in Arctic waters, was discovered a week ago on the loose 130 kilometers from the coast in the French river Seine.
The whale was bound for Paris, but since Friday has been stuck between two locks around 70 kilometers north of the French capital.
Transported by truck
The health of the whale has deteriorated considerably in recent days and, at the latest at the weekend, the rescuers expressed little hope of being able to save it.
Although the rescue workers have tried to feed the whale both frozen herring and live trout, it refuses to eat.