RIA Novosti reported that the Navy ship docked amid accusations by the Russian government that the ships are bringing arms to the Georgian military.

The U.S. Coast Guard Cutter Dallas arrived Wednesday, three days after the arrival of the U.S.S. McFaul destroyer.

The Coast Guard cutter, which is carrying food and essential commodities, was deployed after NATO announced its decision to deliver humanitarian aid to Georgia on Aug. 12.

Russian President Dmitry Medvedev has accused the U.S. ships of delivering weapons to the Georgian military.

Russian Foreign Minister Sergei Lavrov said Tuesday the U.S. presence in the region is raising tensions.

"Battleships do not normally deliver aid, and this is gunboat diplomacy -- it does not make the situation more stable," he was quoted as saying.