Three million people are now refugees from the conflict, as estimated by the United Nations.
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.
Russian president Vladimir Putin says a ceasefire has been brokered between the Syrian government and rebel forces. The ceasefire is said to be guaranteed by Russia and Turkey and would exclude UN-denominated terror organizations such as ISIL and al-Nusra. The FSA says it would abide by the truce, while Ahrar al-Sham expresses "reservations".
The Secretary-General of the United Nations, Ban Ki-moon, arriving in Iran for the Non-Aligned Movement summit, says Iran "can play an important role in the peaceful settlement of (the) Syrian crisis".