Amateur video purports to show government forces bombarding the city of Deraa on Sunday.<br/> <br />Syria's civil war continues to gain momentum with casualties mounting on both sides.<br/> <br />Latest reports from the UK- based Syrian Observatory for Human Rights claimed 20 rebel fighters were killed in an air strike in Idlib whilst 50 Syrian pro-Assad security forces are said to have died when a suicide bomber blew himself up in Hama.<br/> <br />These reports and videos cannot be independently verified.<br/> <br />Syria's fragmented and factional opposition is now trying to create a unified front, with international backing, at a meeting in Doha to better their chances of ending more than a year of bloody conflict.<br/> <br />In Damascus, Syria's foreign minister, Faisal Miqdad, dismissed the Doha talks as more laughable foreign meddling in Syrian affairs.<br/> <br />Russia, which also opposes what it calls foreign interference in the Syria crisis, endorsed on Monday an Egyptian talks initiative that would include three opponents of Syrian President Bashar al-Assad - Egypt, Saudi Arabia and Turkey - together with Iran - a staunch ally of Syria.<br/> <br />Lavrov was speaking at a news conference with Egyptian counterpart Kamel Amr who said Cairo wants all Syrian factions of the opposition, in and out of Syria, to unify under one banner.