The United States notifies the United Nations of its formal withdrawal from the Paris Agreement.
The United Nations human rights office says that Myanmar has been carrying out daily airstrikes in Rakhine and Chin states and that at least 32 civilians (mostly women and children) have been killed since March 23. The Arakan Army unilaterally declared a month-long ceasefire to fight the COVID-19 pandemic, but the military rejected the ceasefire saying a previous ceasefire had not been respected by the insurgents.
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.
The Obama administration claims that Russia was responsible for the bombing of a United Nations aid convoy near Aleppo on September 19. Russia denies its involvement. In the aftermath of the attack, the United Nations suspends all aid convoys in Syria.
According to Russian ambassador to the United Nations Aleksi Borodavkin, the Syrian Army is preparing to launch an offensive against the ISIL strongholds of Al-Raqqah and the countryside around Deir ez-Zor and that the Russian Air Force will be providing the ground campaign with air support.
Blockade of the Gaza Strip: A United Nations report finds that the Gaza Strip will not be "a liveable place" by 2020 as basic infrastructure in water, health, education and sanitation "is struggling to keep pace with a growing population".
United Nations observers leave the country as their mandate expires. The total number of casualties over the previous weekend is now estimated at more than 100 deaths. The UN envoy describes the conflict as a civil war. Russia says only the UN should decide on force against Syria. The U.S. claims it has "contingency plans" and threatens to change its "calculus" if it finds Syria moving or using chemical or biological weapons. Fighting continues.