Syria bars Western ambassadors

Syria has barred representatives of several Western states, a week after governments around the world expelled its top diplomats.



The US, UK, French and Turkish envoys were among those designated as unwelcomed in Syria.



President Bashar al-Assad has blamed outside powers for Syria's divisions.



Meanwhile, the UN has said the Syrian government has agreed to allow aid agencies to enter the four provinces that have seen the most violence.



The UN has been trying for months to get its aid workers into Syria, but with little success.



Correspondents say visa applications have been delayed or denied, and supplies of aid blocked.



The UN estimates that one million people are in need of assistance inside Syria, and that the number will likely increase after further assessments.