Security services in Norway have charged a university lecturer with gathering illegal intelligence and claim to have uncovered his real identity.
The suspect, said to be in his 30s, had posed as a Brazilian academic, but officials claim he is a Russian spy.
He has been named in Norwegian media as Russian national Mikhail Valerievich Mikushin.
The suspect’s lawyer has said he denies the charges.
Earlier in the week, Norwegian officials said the man had a Brazilian passport and had worked as a researcher at the University of Tromso in the north of the country since 2021.