Syria unrest: Observer 'angry at snipers'
Arab League observers have expressed concern about government snipers firing at Syrian protesters from rooftops, a video posted online suggests.
The footage appears to show one official saying measures would be taken if snipers were not withdrawn.
Violence in Syria has continued unabated despite the monitors' mission to assess the situation on the ground.
The BBC's Jon Donnison has more details.
31 Dec 2011