US Secretary of State Hillary Clinton has described as a "travesty" Russia and China's veto of a UN resolution condemning Syria's crackdown against anti-government protesters.

Speaking in Bulgaria, Mrs Clinton said efforts outside the world body to help Syria's people should be redoubled.

The vetoing of the resolution drew an angry reaction from around the world, with UK Foreign Secretary William Hague also quick to condemn the move.

Emily Buchanan reports.