NATO secretary-general Jens Stoltenberg commented on on the death of jailed Russian opposition leader Alexei Navalny, Paralel.Az reports citing the Guardian.

Stoltenberg said on Friday he was “deeply saddened and disturbed” by the reports on the death of Russian opposition leader Alexei Navalny.

"We need to establish all the facts, and Russia needs to answer all the serious questions about the circumstances of his death," secretary-general Stoltenberg added.