“Should there be no credible response, we will conclude that this action amounts to an unlawful use of force by the Russian state against the United Kingdom,” she said, promising “much more extensive measures” than the U.K. has previously taken against the Kremlin.
Britain’s Press Association reported after the deadline passed with no reply that May would meet with senior intelligence officials and ministers later in the morning “to discuss developments in the case.” May is also likely to make another statement in the House of Commons, Press Association reported.
A spokesman for Russia’s embassy in London told Reuters: “Russia will not respond to London’s ultimatum until it receives samples of the chemical substance.” The spokesman again denied Russian government involvement and said, without elaborating, that Moscow would respond to any British measures.
The British Foreign Office had no comment, Reuters reported.
So what are May’s options — and how could they affect Britain’s closest ally, the United States?