In announcing the ban, Ukraine says it's uncovered evidence that Russian agents can access private user messages on Telegram, including deleted correspondence.

Ukraine has banned the use of the Telegram messaging platform on official devices issued to government and military personnel, as well as defence sector and critical infrastructure employees. The country's powerful National Security and Defence Council (Rnbo) said this was done to "minimise" threats posed by Russia,

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,