According to the SIS, evidence collected during the pre-trial investigation provide reasonable basis to suspect that Sidlauskas and an employee of a foreign company's Lithuanian branch agreed to receive a bribe from a Russian citizen, the owner of a majority stake in one of the Russian banks.

Based on information available to BNS Lithuania, the detained Russian citizen is Rinat Nasirov who is the owner of the Novy Promyshleny Bank together with his wife.

According to Russian media reports, the Russian central bank suspended the license of the Novy Promyshleny Bank, one of the smallest commercial banks in the country in terms of assets, in February, 2018 due to numerous violations of requirements on the prevention of money laundering and terrorism funding.

The license was canceled on Aug. 3, 2018.

Sidlauskas is suspected to have promised to use his previous long-standing diplomatic service to influence people for the Russian citizen to be issued a Schengen state's visa.

Lithuanian Ambassador to Russia Remigijus Motuzas told BNS Lithuania on Monday he had no information on the law enforcement investigation, saying that there are no ways to influence diplomats when issuing Schengen visas.

"There can be now influence as the requirements on Schengen visas are based on both our legislation and also the European Commission's legislation. Every citizen who applies must meet requirements for getting a Schengen visa. Of course, our embassy issues national, Schengen visas, and there are 17 visa centers in Russia but our embassy' consuls, who are independent when making decisions, based on their consular status, always make the final decision," he said.

Motuzas said he talked to Sidlauskas long time ago as a representative of the industrialists' association on business affairs.

Since Lithuania regained independence, Sidlauskas worked for the Ministry of Foreign Affairs, holding various positions, and was a long-standing head of the ministry's Consular Department.

He also served as Lithuania's ambassador to Canada and was also the country's ambassador to Russia in 2002-2008.

He's been head of the ALCCIC since 2009.