LONDON - British Prime Minister Theresa May agreed with U.S. President Donald Trump and French President Emmanuel Macron on Tuesday that the world needed to respond to reports of a chemical weapons attack in Syria, Downing Street said. May, who held separate calls with the two leaders on Tuesday, agreed that reports of a chemical weapons attack in Syria were 'utterly reprehensible' and if confirmed, represented further evidence of the appalling cruelty shown by the regime of Bashar al-Assad. 'They agreed that the international community needed to respond to uphold the worldwide prohibition on the use of chemical weapons,' a spokeswoman from May's office said after the call.