China's ambassador to the United Nations, Zhang Yesui, has said the time is not right to consider more sanctions against Iran. The UN Security Council, including China, has previously called for Iran to stop enriching uranium and has issued three sets of sanctions.
Britain and the US have joined forces to tackle the "evolving threat" from Islamist groups in Yemen and Somalia, Downing Street has announced. Officials said the UK and the US were funding a counter-terrorism police unit in Yemen.
Iranian opposition leader Mir Hossein Mousavi has said he is not afraid to die for the cause of reform.
It was his first comment since the death of his nephew and other anti-government protesters late last month.