Norwegian police have arrested a man on suspicion of spying for Russia in the city of Tromsø, public broadcaster NRK reported, citing the Nordic country's security service PST.

The man, who worked as a scientist at the University of Tromsø, posed as a Brazilian citizen, but police believe he is actually Russian, NRK reported. The man is a threat to fundamental national interests and should be expelled from Norway, PST deputy chief said.

According to the PST, the man, who has been in Norway since 2021, tried to settle in the country under an assumed name while secretly working for Russian intelligence, NRK reported.