Biden calls Georgian President over Russia tensions

US Vice President Joe Biden called Georgian President Mikheil Saakashvili to express concerns over rising tensions, nearly a year on from Georgia's war with Russia, the White House said.

The call came hours after US President Barack Obama discussed the rising tension in the region in a telephone conversation with Russia's President Dmitry Medvedev.

"Vice President Biden called Georgian President Saakashvili today to discuss the current situation in Georgia," the White House said in a statement.

"Vice President Biden expressed concern about the recent escalation in tensions and emphasized that all parties should avoid destabilizing actions.

"He also underscored the importance of having an objective international monitoring mission with access to both sides of the boundary line.

"Vice President Biden reiterated US support for Georgia's democracy."