Moscow (CNN) BBC's Russian-language website is being investigated by Russia's telecommunications regulator Roskomnadzor for possible "terrorist content."

Roskomnadzor said Thursday it would probe whether the British public broadcaster was in violation of Russia's strict anti-extremism laws.

"At present, materials have been discovered that broadcast the ideological attitudes of international terrorist organizations (quotes from terrorist Al-Baghdadi)," Roskomnadzor said, referring to ISIS leader Abu Bakr al-Baghdadi.

"An examination is carried out to determine whether these materials comply with Russian anti-extremist legislation."

Responding to the allegations, a BBC spokesperson told CNN: "As a global broadcaster, BBC fully complies with the legislation and regulations of every country where it operates, including Russia, and we are always ready to provide additional information about our coverage when requested by the appropriate regulator."

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