U.S. officials are warily watching as Syria begins moving undeclared chemical weapons out of its storage facilities.
Syria challenged the United Nations chief over the size and scope of a U.N. truce monitoring mission on Wednesday, resisting a larger presence as its army shelled targets in the city of Homs in violation of the ceasefire.
Western powers brushed aside Russian criticism of a U.S.-drafted Security Council resolution authorizing an advance team of U.N. observers to monitor Syria's fragile ceasefire and said on Friday they hoped to put it to a vote this weekend.
U.N. Secretary-General Ban Ki-moon said on Monday he deplores the cross-border shootings from Syria into Turkey and Lebanon ahead of a ceasefire deadline in the yearlong conflict that has pushed Syria to the brink of civil war.
The European Union slapped sanctions on the mother, sister and influential wife of President Bashar al-Assad on Friday, increasing pressure on Syria to halt its bloody crackdown against a year-long uprising.
Syrian government forces killed dozens of people in the northern city of Idlib, dumping their bodies in a mosque, while some 22 soldiers died in two separate rebel ambushes, opposition activists said on Tuesday.
Syrian artillery pounded rebel-held areas of Homs as President Bashar al-Assad's government announced that voters had overwhelmingly approved a new constitution in a referendum derided as a sham by his critics at home and abroad.
At least 28 people were killed in two bomb attacks in Syria's second city Aleppo on Friday while in besieged Homs, opposition neighbourhoods endured another day of bombardment by President Bashar al-Assad's troops.
Syrian security forces shot dead seven people on Friday, rights campaigners said, as protesters defied a nationwide crackdown by President Bashar Assad which world leaders condemned.
A human rights activist said Syrian security forces have killed six people during widespread protests on Friday.