The United States on Wednesday urged Syria and its backers to halt plans for an all-out military attack against rebel-held Idlib as the UN Security Council prepared to address the crisis.

Restraint and dialogue best ways to deal with Iran 'nuclear' issue.

Myanmar must hold a "proper investigation" into alleged atrocities against the Rohingya, a UN Security Council envoy said Tuesday, after the highest-level diplomatic visit to an area from which 700,000 members of the Muslim minority have been driven out.

UN Security Council envoys began a four-day visit to Bangladesh and Myanmar on Saturday to see firsthand the aftermath of a Myanmar military crackdown that Britain, the United States and others have denounced as ethnic cleansing of Rohingya Muslims.

The UN Security Council met in a secluded farmhouse on the southern tip of Sweden on Saturday in a bid to overcome deep divisions over how to end the war in Syria.

The United States has asked the UN Security Council to vote Tuesday on its proposal to set up an inquiry to investigate chemical weapons attacks in Syria, but the measure could face a veto from Russia, diplomats said.

Moscow is insisting on a "substantial and responsible investigation" in accordance with the Chemical Weapons Convention, Sergei Lavrov said.

The message described the incident as a severe violation of international law, highlighting the UAE's continued violation of Qatari sovereignty that could escalate tension in the region.

Qatar has informed the UN Security Council and the UN Secretary-General of three violations of Qatar's airspace by the United Arab Emirates (UAE) and the Kingdom of Bahrain.

The resolution calls for an immediate end to hostilities in Syria for 30 days, to allow for the delivery of humanitarian aid and the evacuation of the sick and injured.

Turkey on Sunday welcomed the unanimous demand by the UN Security Council for a 30-day ceasefire in Syria, but insisted that its own operation against a Kurdish militia in the Afrin region was not affected.

The UN Security Council on Sunday was considering two draft resolutions on Yemen after Russia put forward a rival text aimed at blocking action against Iran over missiles sent to the country's Houthi rebels.