A trilateral summit between Iran, Russia and Turkey has called on conflicting parties in Syria to adhere to a political solution in order to settle their differences. "The Syrian war has no military solution and must be settled only through a political process," read a joint statement issued at the end of video conference on Wednesday attended by Russian President Vladimir Putin, Turkish President Recep Tayyip Erdogan and Iranian President Hassan Rouhani. They also agreed to hold the next trilateral summit on Syria in Iran but provided no date, according to the Iranian state TV. During the meeting, Rouhani denounced the US new sanctions against Syria which is battling the coronavirus pandemic as "inhumane". "In line with the previous sanctions and its desperate efforts to put pressure on the Syrian people, the United States has imposed new unilateral and inhumane sanctions," Rouhani said. (IANS)