Russia's Interior Ministry said on Thursday it was launching a probe into the hospitalization of Kremlin critic Alexei Navalny over what his allies suspect was a poisoning, TASS news agency reported.
Navalny is in a medically induced coma in a Berlin hospital where he was airlifted on Saturday after collapsing during a flight.
The German clinic treating him said its initial medical examination pointed to poisoning, though Russian doctors who had treated Navalny in a Siberian hospital have contradicted that diagnosis.
