Turkey sent more reinforcements into northwestern Syria on Thursday, setting up new positions in an attempt to stop a Syrian government offensive on the last rebel stronghold in the war-tirn country, the media and opposition activists said. The move came after a rare confrontation between Turkey and Syria on Monday that killed seven Turkish soldiers and a Turkish civilian member of the military, as well as 13 Syrian soldiers. In Moscow, the Foreign Ministry announced that Russian soldiers have been killed in a northern Syrian province alongside Turkish servicemen, without saying when the incident occurred.