CNN

It was also unclear which side was in control of Tskhinvali on Saturday, with the Georgian side saying fighting still raged but the Russians saying they have “liberated” the city.

“Battalion task forces have fully liberated Tskhinvali of Georgian armed forces and started pushing Georgian units out of the area of responsibility of the peacekeeping forces,” said General Vladimir Boldyrev, commander of the Russian Ground Forces, in an interview with Interfax.

Colonel-General Anatoly Nogovitsyn, a spokesman for the Russian Defense Ministry, told a news conference that the paratroopers will “implement the operation of enforcing peace” on both sides.

Nogovitsyn also confirmed that Georgians had shot down two Russian aircraft.

Russia said the troops were also reinforcing the Russian peacekeepers already in South Ossetia.

“Our peacekeepers, along with reinforcement units, are currently conducting an operation to force the Georgian side to accept peace,” Russian President Dmitry Medvedev said at the Kremlin, according to the RIA-Novosti news agency. “They are also responsible for protecting the population.”

Interfax said 15 peacekeepers were killed in the Friday attack by Georgian troops. Russia has opened a criminal probe into their deaths, Interfax reported.

BBC

The BBC’s Richard Galpin in Gori heard loud explosions and saw large plumes of smoke rising into the sky; soldiers and civilians were seen running through the streets.

One missile hit a military base, from which most of the soldiers appeared to have managed to escape beforehand, he says.

The Georgian military said residential buildings had also been struck, leaving a number of civilians dead. Our correspondent says injured civilians were being pulled from the buildings, which were on fire.

The Georgian foreign ministry in Tbilisi said the Black Sea port of Poti, the site of a major oil shipment facility, had also been “devastated” by a Russian air raid.