British Prime Minister Theresa May has said the United Kingdom will consider adequate steps alongside its allies after Russia had earlier said that it would expel 23 British diplomats. Russia announced its move on Saturday after London accused the Kremlin of carrying out a nerve toxin attack on a former Russian double agent and his daughter in England."We will never tolerate a threat to the life of British citizens and others on British soil from the Russian Government. We can be reassured by the strong support we have received from our friends and allies around the world," May said at the Conservative Party's spring forum in London. "We will consider our next steps in the coming days alongside our allies and partners," she added.