<p>Russia's foreign ministry said on Tuesday an alleged poisoning of opposition politician Alexei Navalny was not of benefit to the country's leadership.</p>.<p>Navalny, an outspoken opponent of President Vladimir Putin, collapsed on a plane to Moscow and was airlifted to Germany for treatment from the Siberian city of Omsk on Saturday.</p>.<p>"We consider accusation in some intention to 'cover the truth' voiced by Western capital towards Omsk doctors to be deeply insulting," the foreign ministry said in a statement.</p>.<p>The Kremlin said on Tuesday it saw no need for now to investigate circumstances leading up to Navalny's grave illness.</p>
<p>Russia's foreign ministry said on Tuesday an alleged poisoning of opposition politician Alexei Navalny was not of benefit to the country's leadership.</p>.<p>Navalny, an outspoken opponent of President Vladimir Putin, collapsed on a plane to Moscow and was airlifted to Germany for treatment from the Siberian city of Omsk on Saturday.</p>.<p>"We consider accusation in some intention to 'cover the truth' voiced by Western capital towards Omsk doctors to be deeply insulting," the foreign ministry said in a statement.</p>.<p>The Kremlin said on Tuesday it saw no need for now to investigate circumstances leading up to Navalny's grave illness.</p>