WASHINGTON (AP) — U.S. intelligence officials have determined that Russian President Vladimir Putin likely didn’t order the death of imprisoned opposition leader Alexei Navalny in February, according to an official familiar with the determination.

While U.S. officials believe Putin was ultimately responsible for the death of Navalny, who endured brutal conditions during his confinement, the intelligence community has found “no smoking gun” that Putin was aware of the timing of Navalny’s death — which came soon before the Russian president’s reelection — or directly ordered it, according to the official.

The official spoke on the condition of anonymity to discuss the sensitive matter.

Soon after Navalny’s death, U.S. President Joe Biden said Putin was ultimately responsible but did not accuse the Russian president of directly ordering it.