Russia has continued air raids deep inside Georgia, after it rejected Tbilisi's announcement that it had called a ceasefire and wanted talks.
Jets bombed targets near Tbilisi, including the airport, and a Georgian boat was later sunk, reports said.
Earlier Georgia said its troops had pulled out of the breakaway region of South Ossetia and Russia was in control of its capital, Tskhinvali.
Thousands of civilians have fled - it is UN Security Council holds emergency meeting over Georgia ...
UN Security Council Remains Deadlocked Over South Ossetia ...
Georgian president meets German Chancellor in Berlin ...
EU Reaffirms Support for Georgia in Spat with Russia ... not clear how many have been killed.
Georgian President Mikhail Saakashvili told the BBC his forces had observed a ceasefire since 0500 on Sunday morning, but had still been bombed by Russian planes. He said his government had been trying "all day" to contact Russia to discuss a ceasefire.
Peace mission
Russian jets were still carrying out bombing raids late on Sunday. Witnesses said jets had hit Tbilisi International Airport, as well as a military airfield close to the Georgian capital.
The airport was hit only a few hours before French Foreign Minister Bernard Kouchner and Finnish Foreign Minister Alexander Stubb arrived on a peace mission.
See a map of the region
A Georgian official said earlier that Russian planes had bombed the western town of Zugdidi and Georgian-controlled territory inside Abkhazia. The claims could not be independently verified.
Later Moscow said it had sunk a Georgian naval vessel after it tried to attack Russian warships, officials in Moscow were quoted as saying.
Meanwhile, the United Nations Security Council began meeting for a fourth day on Sunday to discuss the conflict. It has so far failed to agree on the wording of a statement calling for a ceasefire.
Clashes in South Ossetia itself were reported to be less intense on Sunday, as Russian forces took control and Georgian troops drew back.
Local residents fleeing the area on Sunday morning told the BBC that Tskhinvali was relatively quiet.
Later, however, the BBC's Richard Galpin described a real sense of panic on Sunday night in the Georgian town of Gori, near the South Ossetia, amid fears that Russian troops were about to march on the town.
He had been warned by the interior ministry to leave Gori, only to find that the road to Tbilisi was crammed with cars full of fleeing civilians.
'Disproportionate force'
Georgia's announcement of its ceasefire came in a statement from the foreign ministry, stating that Georgia "today stopped firing in the South Ossetian conflict zone and is ready to begin talks with Russia on a ceasefire and cessation of hostilities".
It said a note had been passed to the Russian embassy in Georgia to that effect.
But a Russian foreign ministry official was quoted by Interfax saying "our information does not confirm the Georgian statement".
"There are indications that exchanges of fire are continuing and the Georgian forces have not been fully withdrawn from the conflict zone," he said.
The United Nations refugee agency (UNHCR) called on the parties to the conflict to grant safe passage for thousands of civilians trying to escape the war zone.
The UNHCR estimates that between 10,000 and 20,000 people have been displaced within Georgia, including South Ossetia, while Russia has said that a further 30,000 people have fled north into the Russian province of North Ossetia.
"The conflict has caused civilian casualties and more are at risk," UN High Commissioner for Refugees Antonio Guterres said.
"It is essential that humanitarian agencies be able to reach the affected and the displaced."
Meanwhile tensions were rising in Georgia's other breakaway region, Abkhazia.
The leader of the separatist government there, Sergei Bagapsh, said he had ordered a military operation to clear Georgian forces out of Abkhazia's Kodori Gorge, and gave them a deadline to leave.
Georgia has accused Russia of landing 4,000 more troops in Abkhazia via the Black Sea. The separatists said Georgia had deployed a similar number of soldiers south of the Abkhaz border.
The US has described Russia's actions as "dangerous and disproportionate".
US Deputy National Security Adviser James Jeffrey said that if the Russian escalation continued, it would have a "significant" long-term impact on relations between the Moscow and Washington.
Nato Secretary General Jaap de Hoop Scheffer said Russia had violated Georgia's territorial integrity in South Ossetia and condemned the "disproportionate use of force".
The Russian radio station Echo Moscow reported that two journalists, including a photographer for the Russian news agency Itar-Tass, were shot dead by separatists after entering South Ossetia.
Click to return
Are you in the areas affected by the violence? If you have witnessed anything you want to share with the BBC, please do so using the form below:
You can send pictures and video to:
yourpics@bbc.co.uk or text them to +44 7725 100 100. If you have a large file you can upload here.Click here to see terms and conditions.
At no time should you endanger yourself or others, take any unnecessary risks or infringe any laws.
(BBC)
<< Back