<span style="color: #222222;">United States, France, Germany and Canada today backed Britain's assessment that two suspects accused of poisoning a Russian ex-spy and his daughter in the UK were Russian military intelligence officers, and that the Russian government "almost certainly" approved the attack. </span><br />'' <br />'' <span style="color: #222222;">The leaders the United States, France, Germany, Canada and the UK in a joint statement said, we reiterate our outrage at the use of a chemical nerve agent, known as Novichok, in Salisbury on March 4.</span><br />'' <br />'' <span style="color: #222222;">Sergei Skripal and his daughter, Yulia Skripal, were poisoned with the military-grade nerve agent Novichok in the English city of Salisbury in March, in a case that triggered a diplomatic crisis between the UK and Russia. </span><br />'' <span style="color: #222222;">  </span><br />'' <span style="color: #222222;">The leaders also urged Russia to fully disclose its Novichok program to the Organization for the Prohibition of Chemical Weapons, an international watchdog.</span><br />'' <br />'' <span style="color: #222222;">Meanwhile, the Kremlin today rejected accusations by British authorities that Russian President Vladimir Putin is ultimately responsible for poisoning a former spy in England, and said Russia is not going to investigate the suspects.</span><br />