“We renew our call on Russia to clarify what happened,” German government spokesman Steffen Seibert said in a statement.

Navalny’s poisoning is a “grave violation” of the Chemical Weapons Convention, Berlin reiterated.

Navalny has been hospitalized since August 22 in a hospital in Berlin, where he was brought two days after he was injured on the plane he was returning from Tomsk to Moscow.

The German government announced on September 2 that it had “unequivocal evidence” of Navalny’s poisoning with a neurotoxic agent from the Noviciok range, a poison developed by the Soviets since the 1970s and inherited from the Russians. These samples were obtained from tests performed by a German military laboratory.

Similar tests conducted recently in France and Sweden confirmed the initial results, Steffen Seibert announced on Monday.

“We reiterate our call for Russia to provide an explanation for these events. We are in close contact with our European partners in order to take new measures “, he announced in the communiqué.

Moscow refuses to open a full investigation into the case, citing mere checks. He also insists that his doctors found no traces of poison in the body of the Russian opponent.