Georgia is conducting what it calls an anticrime operation to detain militia head Emzar Kvitsiani, a former presidential envoy, and about 50 of his supporters in the remote Kodori Gorge, the only Tbilisi-controlled part of Abkhazia.
"I repeat once again that the situation is normal," said Anatoly Zaitsev. "No gun fire was heard from the upper part of the Kodori Gorge, controlled by Georgia, either yesterday or today."
Georgia's authorities have repeatedly said the operation is not a military one, is only aimed against criminal groups in the region and will not spill over into Abkhazia, which is one of two unrecognized republics in the South Caucasus country.
"Reserve military detachments have been deployed at the Abkhazian [border] checkpoints to prevent a sudden aggression of the enemy [Georgia]," Zaitsev said.
President of Abkhazia Sergei Bagapsh warned Wednesday that anyone trying to cross the republic's border would be shot.
"We will shoot to kill [anyone] crossing Abkhazia's border by even one meter," Bagapsh said.
The breakaway region declared independence in 1992, which led to a conflict with Georgia that ended with a ceasefire two years later. Thousands died during the fighting.
Georgia started the current operation after Kvitsiani said he did not recognize Tbilisi's rule on Sunday. He said Georgian troops were moving to the area to disarm former members of his Hunter border guard battalion, which was formally disbanded in 2005, though most members refused to lay down their arms.
