The training was performed as part of a visit by three Russian ships to Japan, according to Russia's Eastern Military District Pacific Ocean Fleet news service.
The detachment of warships, which includes two large anti-submarine ships — Admiral Tributs and Admiral Vinogradov — and a medium range tanker Pechenga, arrived to Japanese Navy base Maizuru Thursday.
"In accordance to the visit plan, marine units of Pacific Fleet detachment, acting as a searching team, together with Japanese servicemen, have conducted an exercise on suspicious vessel search," the news service stated.
So-called doors-open days were reportedly conducted on the Tributs and the Vinogradov. A mini football match between the servicemen of the two nations has also been scheduled, according to the statement.
The visit is scheduled to wrap up on July 10.