Millionaire funded operation called ‘pure animal cruelty’ after environment minister sent threats on social media

Final preparations are reportedly under way for a millionaire funded plan to tow a sickly humpback whale into the North Sea.

The 12-tonne whale, nicknamed Timmy, has been stranded on the Baltic Sea coastline for almost a month. A barge resembling a giant steel aquarium will attempt to transport Timmy 400km (248 miles) towards the North Sea, and then hopefully back to the Atlantic Ocean from where it is believed to have arrived.

Critics say efforts to rescue the animal, nicknamed Timmy, unlikely to succeed and could lead to further harm

A last-ditch effort to rescue a wayward whale that has transfixed Germans for weeks has begun in the Baltic Sea despite criticism it has little chance of success and could further harm the 12-tonne creature.

The male humpback whale was first spotted last month near Timmendorfer Strand on the northern coast of Germany, giving rise to its nickname Timmy. It has repeatedly become stranded and then freed itself after human assistance but it is now stranded again, with rescuers saying it is fighting a losing battle for its life.