No charges filed as Sweden releases sanctioned Russian cargo ship

"The prosecutor has decided not to open an investigation into suspected violation of sanctions," a spokesperson for the customs service said. "The ship has therefore been allowed to go on its way."

In addition to the Adler being on a European Union sanctions list, the vessel and its owners M Leasing are both subject to US sanctions, suspected of involvement in weapons transport, according to OpenSanctions, a database of sanctioned companies and individuals, persons of interest and government watchlists.