The six men were detained Wednesday, starting what had become a major dispute between the two neighboring countries.
Ivan Volynkin said contract soldier Ruslan Skrylnikov had been released during the night and brought to the building of the Russian military contingent in Tbilisi.
"He was brought in the night to the building of the Russian Group in the South Caucasus and left at a checkpoint," he said.
Russian Foreign Minister Sergei Lavrov earlier expressed his concern over the detention of the Russian servicemen. He said it was another provocation by Georgia and once more demonstrated Georgia's anti-Russia policy.
Russian Defense Minister Sergei Ivanov, who is also a deputy prime minister, condemned the episode, saying "Gangsterism in Georgia has taken on a state scale."
Tensions between Russia and Georgia have been rising in the past few years over the presence of Russian peacekeepers in the breakaway Georgian republics of Abkhazia and South Ossetia, and the current scandal has done nothing to improve the atmosphere.
