Norway said on Tuesday it would block Rolls-Royce’s sale of a Norwegian engine maker to Russia over concerns that Moscow could get its hands on sensitive technology.

The Scandinavian country, a NATO member, two weeks ago asked Rolls-Royce to temporarily halt the sale of Bergen Engines while it examined the consequences a sale would have on national security.

“We now have enough information to conclude that it is absolutely necessary to prevent the sale of the company to a company controlled by a country with which we have no cooperation in the field of security,” Justice and Public Security Minister Monica Maeland said on Tuesday.

In a statement, the Norwegian government explained that “the technology used by Bergen Engines and the engines it manufactures would be of great military importance to Russia.

The technology used by Bergen Engines and the engines it manufactures would be of great military importance to Russia

“It would strengthen Russia’s military capacity in a way that would clearly be contrary to the best interests of the Norwegian and allied security policy,” it said.

Bergen Engines, which employs 950 people, has been part of Rolls-Royce since 1999, servicing engines for Norwegian Navy vessels and, according to local media reports, for the top-secret intelligence gathering ship Marjata.

The veto risks angering Moscow.

On March 9, when the sale was temporarily halted, the Russian embassy in Oslo criticised the “anti-Russian implications” of the decision.

The sale of Bergen Engines was to have been part of a two-billion-pound (€2.3bn) divestment programme announced last August to strengthen Rolls-Royce’s finances.

The proposed buyer, TMH Group, is a privately owned company headquartered in Russia that makes locomotives and rail equipment.