The UN investigative body for Syria says it's possible "more than enough" evidence will be found to convict people of crimes against international law.

The United Nations Security Council on Friday extended a long-running peacekeeping mission between Syria and the Israeli-occupied Golan Heights for six months and expressed concern that military activities in the area could escalate tensions.

The visiting head of a UN investigative body for Syria said Sunday it was possible to find "more than enough" evidence to convict people of crimes against international law, but there was an immediate need to secure and preserve it.

Israeli airstrikes on Syria are violations of the country's sovereignty and territorial integrity and "must stop," United Nations Secretary-General Antonio Guterres said on Thursday.

The raft of international sanctions on Syria must be reassessed to help the country rebuild following the ousting of president Bashar al-Assad, the head of the UN's migration agency said Friday.

UN Secretary-General Antonio Guterres said Thursday that there was a "flame of hope" in Syria following the fall of president Bashar al-Assad's regime but warned of significant challenges ahead.

It is vital that Syria's new leadership keeps its promises to respect the rights of all the country's diverse religious and ethnic groups, according to UN Special Envoy Geir Pedersen. Mr Pedersen, speaking to the BBC in Damascus,

The first commercial flight since the ouster of president Bashar al-Assad took off from Damascus airport on Wednesday, offering Syrians a glimmer of hope after years of war and decades of oppression.

Large-scale returns of refugees to Syria could overwhelm the country and even stoke conflict following the toppling of President Bashar al-Assad, the head of the U.N. migration agency said on Friday.

Many of the100,000 have entered Syria from neighboring countries such as Lebanon as they attempt to travel to their former homes.

Geir Pedersen, the UN's special envoy for Syria, is calling on Israel to end its ground operations and bombing raids in Syria, calling them "very troubling." "We are continuing to see Israeli movement and bombardments into Syria,

In churches across long-stifled Syria, Christians have marked the first Sunday services since Bashar Assad’s ouster in an air of transformation.