The embattled regime of Syrian president Bashar al-Assad has announced it will open an inquiry into the murder of Lebanon’s former leader.Damascus says the probe will examine those implicated in the United Nations report on the assassination of Rafik al-Hariri last February. The document, unveiled by the veteran German prosecutor Detlev Mehlis, quoted testimony alleging that figures close to Assad organised the killing in cooperation with elements within the Lebanese security services. The report was a diplomatic bombshell, dramatically increasing pressure on an already isolated Syria. Damascus rejected the findings but declared it was ready to work with Mehlis. The US, Britain and France are leading calls for action against Syria in the Security Council.