Alexei Navalny, the imprisoned Kremlin critic, said on Tuesday that he had been informed by prosecutors that three new criminal investigations had been opened against him.

In a new Instagram video, President Vladimir Putin’s top domestic opponent joked, “My powerful criminal syndicate is rising.”

“I am a visionary and the mastermind of the criminal underworld,” the 44-year-old said, noting that the latest investigations included more than 20 investigators.

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Navalny said he was suspected of “stealing” funds from his Anti-Corruption Foundation and insulting a judge, according to a senior representative of Russia’s Investigative Committee, which investigates major criminal acts.

According to Navalny, he is also suspected of forming a non-profit group and motivating Russians to avoid performing “civic duties” by launching an analysis of Putin’s alleged wealth.

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In January, Navalny published a report on a Black Sea palace purportedly designed for Putin by Russian businessmen, which has received over 116 million views on YouTube. Putin disputes that he owns the palace.

Navalny was apprehended in January after arriving from Germany following a nerve agent poisoning attack that he claims was planned by the Kremlin. The accusation has been denied by the Kremlin.

He’s completing a two-and-a-half-year sentence in a prison camp outside of Moscow on old charges of fraud that he claims are politically influenced.  Several other investigations are aimed at him.

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As pressure mounts on the opposition ahead of September’s parliamentary elections, Navalny declared the additional charges against him.

Navalny’s system of regional offices and his Anti-Corruption Foundation will be added to a list of “terrorism and radical” groups by a court next month.

In a further blow to his supporters, Russia’s lower house of parliament enacted laws in the first reading this month prohibiting representatives of “extremist” groups from becoming legislators.

The bill was scheduled for a second reading on Tuesday.