Chaos and carnage in the southern Syrian town of Tafas, near Deraa.<br/> <br />Reuters is unable to independently verify the content of this video, obtained from a social media website and reportedly shot on Friday.<br/> <br />Oppostiion group, the The Syrian Observatory for Human Rights puts the death toll over the last 48 hours at 550 - making it the bloodiest two days of the 16-month uprising.<br/> <br />Meanwhile UN observers begin their journey home after a shift in focus in the UN's monitoring mission.<br/> <br />The Security Council unanimously approved a 30-day extension of Kofi Annan's peace plan, which deployed 300 unarmed observers to Syria in April.<br/> <br />But after little progress in monitoring the non-existent truce, UN Secretary General Ban Ki Moon has now shifted the emphasis to pursing a political solution.<br/> <br />Diplomats say only half of the 300 observers will be needed for this.<br/> <br />The rest are returning home - but will be ready to redeploy at short notice If needed.<br/> <br />Sunita Rappai REuters
