A Russian man has been detained in Norway, suspected of flying unmanned drones in the country.
The fifty-year-old was found with two drones, following a number of drone sightings near to Norwegian offshore oil and gas platforms in recent weeks.
The Russian citizen was detained on Tuesday but has not been identified.
Customs officers discovered two drones and several electronic storage devices in the man’s luggage, whilst he was undergoing a routine check at the Storskog border crossing, Norwegian media reported.
The Storskog border crossing is the only crossing point on the 123 mile-long Arctic border between Norway and Russia.
It is suspected that the man breaches sanctions which came into force after Russia went to war against Ukraine, prosecutor Anja Mikkelsen Indbjor told Norwegian broadcaster NRK.
Under Norwegian law, Russian companies or citizens are prohibited from operating aircraft "to land on, take off from or fly over Norwegian territory".
Although Norway is a NATO member, it is not a member of the European Union. It does however share its views on the war in Ukraine.
The Russian man’s defence lawyer, Jens Bernhard Herstad, told Norwegian daily Dagbladet that his client has admitted to flying the drones but has declined to say what exactly he was doing in Norway.
Norwegian justice minister Emilie Enger Mehl explained that it was "too early to draw conclusions".
"It is known that we have an intelligence threat against us which has been reinforced by what is happening in Europe," the minister told NRK.
Recent tensions, and last month’s underwater explosions that ruptured two natural gas pipelines in the Baltic Sea, have led to heightened security around key energy, internet and power infrastructure that were built to send Russian gas to Germany.
The blasts in the Baltic Sea happened in international waters near to both Sweden and Denmark. They were, however, within the countries’ exclusive economic zone.
The damage to the Nord Stream pipelines discharged huge amounts of the potent greenhouse gas, methane, into the air.