Russia's United Shipbuilding Corporation (RUSC) will get back into the passenger vessel building business, with big river vessels.

Other media reports had the shipyard owner getting back into the cruise ship business after 60 years.

RUSC currently builds a host of military vessels for the Russian navy.

RUSC will build 300-passenger 6,100-ton riverboats for Moscow River Shipping, a spokesperson told Cruise Industry News.