Russia's Defence Ministry today said its mission to oust Islamic State terrorists from Syria had been accomplished as Syria has been completely liberated from the extremist group. <br/><br/>Senior military officer Sergei Rudskoi in Moscow said that there is not a single village or district in Syria under the control of Islamic State group. <br/><br/>The Syrian Observatory for Human Rights, which monitors the conflict, today said that IS still holds about eight per cent of Deir Ezzor province.<br/>'<br/>Russia began its bombing raids in September 2015 in support of Syrian President Bashar al-Assad's forces. More than 340,000 people have been killed in Syria since the conflict broke out in March 2011.<br/>