Russia has said, it will not allow clashes between Turkish and Syrian forces, as Ankara's military offensive in northern Syria continues.<br />''<br />'' Russia's special envoy for Syria, Alexander Lavrentyev during a visit to the United Arab Emirates, described Turkey's offensive as unacceptable. He said, Turkish and Syrian officials were in contact to avoid any conflict. <br />'' <br />'' Russia's defence ministry has said its forces, which have been deployed in Syria since 2015, were patrolling along the line of contact between Syrian and Turkish forces. Russia is a key military ally of Syrian leader Bashar al-Assad. <br />''  <br />