The Syrian opposition has agreed to attend a new round of UN-sponsored peace talks set for this week in Geneva, a spokesman told AFP on Monday.
A group of Syrian rebel fighters late Friday seized control of a crossing on the Iraqi border, the Syrian Observatory for Human Rights said.
UN envoy Staffan de Mistura said the Syrian people, not foreigners, should decide the fate of their President Bashar al-Assad.
German police on Thursday arrested a doctor suspected of having recruited a man of limited mental capacity to fight for the Islamic State organisation in Iraq.
War-torn Syria was hit Thursday by a nationwide power cut, state television reported, but the cause was not immediately known.
Gulf countries declared Lebanon's Hezbollah a "terrorist" group, in the latest regional move against the Shia organisation fighting in support of Syria's regime.
UN Secretary-General Ban Ki-moon and Russian Foreign Minister Sergei Lavrov agreed on Tuesday on the need to urgently implement the cessation of hostilities agreement in Syria.
Defence ministers from the US-led coalition against Islamic State discussed the possibility of a Syrian ground incursion two weeks ago in Brussels, but have not made a decision, an aide to Saudi Arabia's defence minister told Reuters on Monday.
Countries backing the Syria peace process were due to meet at 3 pm on Monday in Geneva as France demanded information about attacks in breach of a cessation of hostilities that came into force on Friday night.
Saudi Arabia on Sunday accused President Bashar al-Assad's regime and its ally Russia of ‘ceasefire violations’ in Syria.
Guns fell silent across Syria on Saturday after a landmark UN-backed ceasefire came into effect, as a special task force led by rivals Moscow and Washington prepared to begin monitoring the fledgling truce.
The head of Syria's powerful Al-Qaeda branch on Friday urged opponents of President Bashar al-Assad to reject a ceasefire due to begin at midnight and instead intensify attacks on the regime.
