Ukraine has banned government officials, military personnel and other defense and critical infrastructure workers from installing the popular Telegram messaging app on state-issued devices

The ban affects government officials and military personnel, over concerns about Russian cyber-attacks.

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

The Ukrainian government has banned the use of the Telegram messaging app on state and military mobile phones in a bid to prevent Russian spying.

Ukraine bans Telegram for government, military, and infrastructure workers, citing national security and cyber threats.