Floral tributes, portraits of late Russian opposition leader Alexei Navalny and messages are seen left outside the former Russian Embassy in Tbilisi on March 1, 2024. 

U.S. intelligence agencies have concluded that Russian President Vladimir Putin probably didn't directly order the killing of Alexei Navalny at a remote penal colony in February, according to three sources familiar with the matter. But the precise circumstances of the opposition leader's death at the Arctic prison remain unclear.

The assessment does not absolve Putin of ultimate responsibility for Navalny's fate, only that the Russian president likely did not call for his killing at that time, the sources said. By sending Navalny to the notorious high-security penal colony in a remote town above the Arctic Circle, the Kremlin had effectively imposed a death sentence on the opposition leader, the sources said.