US demands that Russia, Iran halt Assad chemical attacks

The United States warned Tuesday that Syrian leader Bashar al-Assad must be held accountable for chemical weapons attacks and demanded that Russia and Iran bring their ally to heel."While we continue to monitor the terrible situation, it is clear that this is how Bashar al-Assad operates: with brutal, unabashed barbarism," US Secretary of State Rex Tillerson said.President Donald Trump and Tillerson issued separate written statements after a suspected chemical attack left dozens of Syrians dead