Russia's Federal Security Service has charged Telegram founder Pavel Durov with aiding terrorist activity and placed him on an international wanted list over the messaging platform's alleged failure to remove content used to coordinate attacks inside Russia, according to Interfax.

The FSB said Wednesday that Durov was charged under the Russian Criminal Code, which covers assistance to terrorist activity, per the Interfax report.

Reuters separately reported that the agency had issued an international warrant for his arrest.

According to the FSB, the case relates to Telegram's alleged failure to remove channels, chats and bots that it said were used by Ukrainian special services, terrorist, and extremist organizations to coordinate acts of sabotage, terrorism, mass killings, and cyber fraud within Russia.

Telegram, an encrypted messaging platform founded in 2013, has more than 1 billion users and is widely used by both sides of the Russia-Ukraine war.