Britain and the United States said on Sunday they were considering imposing additional sanctions on Syrian President Bashar al-Assad and his supporters for their actions in Syria’s war. British Foreign Secretary Boris Johnson and U.S. Secretary of State John Kerry, speaking after briefing allies in London on a new diplomatic initiative on Syria, also called on Russia and Iran to agree to a new ceasefire.

The threat of more sanctions on Syria came before a European Union summit on Thursday and Friday to discuss sanctions against Russia. “There’s a lot of measures we’re proposing to do with extra sanctions on the Syrian regime and their supporters, measures to bring those responsible for war crimes to the International Criminal Court,” Johnson told reporters after talks he convened with his U.S counterpart and allies on Syria. FULL REPORT