According to the fundamental news, a huge uptrend was created by new U.S. sanctions against Moscow which drove down Russia's ruble. The reason behind the sanction is that Moscow had used a nerve agent against a former Russian agent and his daughter in Britain, which the Kremlin denies.
Dmitry Medvedev, the Russian prime minister commented: "If something like a ban on bank operations or currency use follows, it will amount to a declaration of economic war, and it will warrant a response with economic means, political means and, if necessary, other means. Our American friends should understand that."