The United States and Russia broker a truce which is due to come into effect on midnight 27 February.
The United Nations Security Council meets amid concerns of military strikes in Syria by the United States and its allies following a suspected chemical weapons attack in Syria last weekend, with the United States ambassador to the UN, Nikki Haley, accusing Russia of lies and covering for the government of Syrian President Bashar al-Assad, which she said had used chemical weapons at least 50 times in the past seven years of warfare, and the Russian ambassador to the UN, Vassily Nebenzia, blaming the United States, France and the UK for escalating tensions.
Turkey threatens to "strangle" the United States-backed Syrian Border Security Force "before it's even born", while Syria vows to crush it and expel American military personnel from the country. Russia called the plans "a plot to dismember Syria".
Syria's government says a U.S.-led military coalition airstrike on a Syrian Army camp in the eastern Deir ez-Zor Governorate, killed three Syrian soldiers and wounded 13 others. A senior U.S. military official denied responsibility for the airstrike and said that the U.S. is certain it was a Russian airstrike.
The United States and Russia sign an agreement designed to avoid conflict between both countries' warplanes in Syria. The Pentagon said the agreement will remain secret; a hotline will enable both countries to directly communicate.
U.S. officials say Russia has begun flying drones on surveillance missions over Syria in what would be Russia's first military air operations in the country since the recent military build-up at a Syrian airbase in Latakia.