Moscow - The Russian military has accused the US-led coalition in Syria of providing safe corridors for the ISIS group to leave the area around its stronghold of Raqqa. Colonel General Sergei Surovikin, the commander of Russian forces in Syria, said earlier this month that ISIS has made a deal with the Kurdish forces to leave two villages southwest of Raqqa and move toward Palmyra. Surovikin said Friday the US-coalition along with the allied Kurds "collude with the leaders of the ISIS, who surrender the areas under their control and head to provinces where Syrian government forces operate". He said Russian forces have struck several ISIS convoys as they left Raqqa. Surovikin also criticized the US for trying to block Syrian government forces from taking control of the country's southern border.