Dockworkers in Finland begin a blockade of the transport of Tesla's cars on December 20. Then they stop stowing and dismantling the car giant's cars that are supposed to be transported to Sweden.

Both Denmark's and Norway's largest trade unions have previously announced sympathy measures with the Swedish IF Metall.

Since the end of October, there has been a protracted strike against Tesla, as the car company refuses to sign a collective agreement with IF Metall.

"IF Metall and their Swedish employees have AKT's full support. The fact that we have comprehensive collective agreements and that the trade unions support each other is an essential part of the Nordic labour market system," says Ismo Kokko, President of AKT.