MOSCOW (Reuters) — Kremlin critic Alexei Navalny said on Wednesday he would fly back to Russia on Jan. 17 from Germany where he has been convalescing after being poisoned.

Navalny, one of President Vladimir Putin’s leading critics, was airlifted to Germany for treatment in August after collapsing on a plane in what Germany and other Western nations say was an attempt to murder him with a Novichok nerve agent.

Russian authorities deny any involvement in the incident.

Navalny wrote on Instagram that he had probably almost fully recovered his health now and said it was time to return to Russia despite various legal threats hanging over him.

(Reporting by Anton Kolodyazhnyy; writing by Tom Balmforth; editing by Andrew Osborn)