15 April 2012 Updated at 04:31 ET
Syria unrest: Renewed clashes as UN monitors due
Continued shelling in Homs is one of the major threats to the ceasefire
Syria Crisis
Divisions laid bare
Opposition disunity
Guide: Syria Crisis
Year of protest
Fresh clashes have erupted in Syria as a vanguard of UN monitors prepares to arrive to oversee the shaky ceasefire
link-
http://www.bbc.co.uk/news/world-middle-east-17719094