On Thursday, Alexei Navalny, an opposition politician from Russia, has made his first appearance in court since he was transferred to the prison in February.

Back then, Navalny was sentenced to 3.5 years in prison for violating the terms of parole of his previous sentence.

Navalny was imprisoned just days after his return from Germany, where he spent several months recovering from nerve agent poisoning.

Even though Kremlin officials denied any involvement in Navalny’s poisoning, the opposition leader remained confident that the highest Russian authorities are responsible for an attempt at his murder.

U.S. intelligence agents confirmed Navalny’s claim, adding that Russian security services used a nerve agent type called ‘Novichok’ that includes nerve toxins developed in the Soviet Union in the 1970s but have been subsequently banned due to their poisonous capacity.

Navalny has recently ended a 24-day-long hunger strike he initiated to protest against his prison conditions.

The opposition leader showed up underweight and with his head shaved.

Accompanied by his wife, Navalny told the judges that he is now ‘just a horrible skeleton’ weighing only 159 pounds, which is the lowest since his seventh grade.

The Russian politician also complained about being denied carrots and apples, which forced him to exclusively consume porridge during the days following the end of his hunger strike.

‘The king is naked.’

During the court hearing, Navalny also spoke about Russian President Vladimir Putin.

Addressing the judges, he exclaimed that the ‘their king is naked’ and that millions of people are becoming aware of that.

Navalny said that after two decades of incompetent rule, ‘the crown is sliding’ from Putin’s ears, even though the Russian President aims to rule indefinitely without any concern for Russia.

Navalny was likely referring to an incident last week in which more than a thousand protesters were arrested after the statewide riots organized against Putin’s regime.

The imprisoned politician also addressed prosecutors, describing them as traitors who obey Putin in depriving Russian citizens of any perspective.

Navalny accused prosecutors of taking the wealth away from Russian citizens and turning them into slaves.

Earlier, Russian authorities banned Navalny’s anti-corruption organization (FBK) from posting online and using its bank accounts.

Vladimir Ashurkov, the organization’s former director who currently lives outside Russia, told CBS News that the move likely came as a result of Putin’s fear of the organization’s growing influence as an oppositional force.

Navalny’s defenders disclosed that Russian authorities initiated another criminal case against Navalny, this time for allegedly infringing upon human rights.

If found guilty, Navalny could face up to four years in prison on this charge.