BEIRUT- Syrian opposition coordinator Riad Hijab said there was a provisional agreement on a temporary truce in Syria, the pro-Syrian opposition Orient TV reported on Monday. Hijab, a former Syrian prime minister who chairs the Saudi-backed opposition High Negotiations Committee , said the agreement would be 'according to international guarantees'. The committee was meeting in Saudi Arabia on Monday to discuss a U.S.-Russian plan to bring about a 'cessation of hostilities'.