The United States told Russia at the United Nations on Wednesday that is it isolating itself by continuing to support Syrian President Bashar al-Assad, while Britain said its scientists found sarin was used in a deadly toxic gas attack on Syrian civilians last week. Russia is set to block a push by Western powers at the United Nations later on Wednesday to bolster support for international inquiries into the April 4 toxic gas attack in Syria. It will be Moscow’s eighth veto in support of the Assad government since the Syrian war began six years ago. “To my colleagues from Russia – you are isolating yourselves from the international community every time one of Assad’s planes drop another barrel bomb on civilians and every time Assad tries to starve another community to death”, U.S. Ambassador to the United Nations Nikki Haley, told the U.N. Security Council.