The US voiced deep concern after a German medical team found a Russian dissident was likely poisoned before being evacuated for treatment.

“If the reports prove accurate, the United States supports the EU’s call for a comprehensive investigation and stands ready to assist in that effort”, - according to Secretary of State Mike Pompeo said.

“Mr. Navalny’s family and the Russian people deserve to see a full and transparent investigation carried out, and for those involved to be held accountable. Our thoughts are with Mr. Navalny’s family and we hope for his full recovery”, - he added.

German doctors at a clinic where the opposition leader is being treated announced Monday that Navalny was poisoned.