Navalny plans to return to Russia on Sunday

Russian opposition leader Alexei Navalny, who was allegedly poisoned, says he will return to Russia from Germany on Sunday.

Navalny posted a message and a video on social media on Wednesday. He reported his rehabilitation is going well and said he has almost recovered his health.

Navalny fell unconscious on board a flight in August. He received treatment in Germany. An international investigative journalism group released a report in December that says Navalny was poisoned with a nerve agent and Russia's security service was involved.

The agency denies any involvement. An investigation is underway against Navalny on charges of fraud. He may be detained if he returns to Russia.

In the video, he says the government will do everything to prevent him from returning. He denied the allegations against him and stressed he will continue to confront the administration of President Vladimir Putin.