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

Final preparations are reportedly under way for a millionaire fundedplan 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.

The mission known as Operation Cushion is scheduled to start on Tuesday. Rescue workers said the animal was positioned in the right direction in the water on Sunday.

“[It] is interesting, it turned 90 degrees – and in the right direction. It seems to be preparing itself mentally and emotionally for departure,” the state’s environment minister, Till Backhaus, told the tabloid Bild.