The United Nations refugee agency UNHCR says it is gravely concerned about the plight of thousands of civilians caught up in the fighting in and around South Ossetia.
Thousands have fled South Ossetia - some to other places in Georgia, others to North Ossetia in Russia, the agency says.
Refugee Commissioner Antonio Guterres has called for civilians to be granted safe passage to areas of safety.
The agency has called on Georgian and Russian forces to implement an agreement to allow refugees from South Ossetia to escape to safety along the Didi Liakhvi Gorge.
Unconfirmed estimates suggest between 40,000 and 50,000 of South Ossetia's 70,000 inhabitants have fled.
The UNHCR is sending a team to the Georgian town of Gori - which was bombed by Russian planes on Saturday - to assess needs there, and intends to resume aid convoys as soon as possible.
A UNHCR spokesman in Georgia says about 46,000 people have fled from their homes in Gori. Many are now in search of shelter.
The UNHCR says it is also ready to help Russia cope with the refugees who are arriving there.