Ukraine has banned use of the Telegram messaging app on official devices used by government officials, military personnel and critical workers because it believes its enemy Russia can spy on both messages and users, a top security body said on Friday.

The National Security and Defence Council announced the restrictions after Kyrylo Budanov, head of Ukraine's GUR military intelligence agency, presented the council with evidence of Russian special services' ability to snoop on the platform, it said in a statement.

But Andriy Kovalenko, head of the security council's center on countering disinformation, posted on Telegram that the restrictions apply only to official devices, not personal phones.

Telegram is heavily used in both Ukraine and Russia and has become a critical source of information since the Russian invasion of Ukraine in February 2022.

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But Ukrainian security officials have repeatedly voiced concerns about its use during the war.