Norway’s security police PST has charged a DNV GL worker with spying after he admitted selling information to Russia.

The unnamed staffer in his 50s was arrested in an Oslo restaurant on Saturday while having dinner with a Russian intelligence officer, according to PST.

The security police tweeted: "PST arrested a Norwegian citizen in Oslo on Saturday 15 August.

"The man is accused of having handed over information to a foreign state that could harm basic national interests."