OSLO, Dec 6 (Reuters) - Norway's largest private sector labour union, Fellesforbundet, announced on Wednesday its plan to block transit shipments of Tesla vehicles destined for the Swedish market, joining a growing Nordic movement in solidarity with striking mechanics in Sweden.

Since October, Swedish unions led by IF Metall have taken industrial action against Tesla, aiming to secure collective bargaining agreements with the electric vehicle manufacturer. The strike has prompted various sectors to support the cause and take action against Tesla in Sweden.

Dockworkers in Sweden have already refused to unload Tesla cars arriving by ship, and a wide range of professionals, including electricians, cleaners, postal workers, and even auto component manufacturers, have declared their intention to withhold their services from the company.

Fellesforbundet, the Norwegian union, expressed its intent to send a decisive message to Tesla and will take whatever measures necessary to ensure that vehicle shipments from Norway to Sweden are obstructed. However, the union did not disclose the specific actions it will take.

Joern Eggum, the leader of Fellesforbundet, stated, "The right to demand a collective agreement is an obvious part of our working life, and we cannot accept that Tesla places itself on the outside." The union's actions are scheduled to begin on Dec. 20.

Tesla has maintained a policy of not engaging in collective bargaining and argues that its employees already receive favorable terms compared to the demands made by the Swedish union.

However, Nordic labor unions argue that Tesla's refusal to adhere to established norms in the region challenges their power and jeopardizes workers' rights to negotiate fair wages, vacation time, overtime pay, and other essential conditions.

In a show of support, Denmark's 3F labor union also announced on Tuesday that it would refuse to unload or transport Tesla vehicles destined for customers in Sweden.

Both the Norwegian and Danish unions emphasized that their actions would solely affect cars intended for the Swedish market.

The growing Nordic movement against Tesla's refusal to negotiate collective bargaining agreements highlights the significant impact unions can have on corporations and their willingness to stand up for workers' rights. As the conflict escalates, the outcome remains uncertain, leaving the future shipment of Tesla cars in limbo.