UK MI6 tipped off Montenegro to arrest Rybar founder Zvinchuk

British intelligence monitored Mikhail Zvinchuk, founder of the pro-war Telegram channel Rybar, from October 2 and alerted Montenegro's security services on October 8, leading to the detention of five Russians the next day. Montenegro's ANB reportedly lacked prior information, highlighting UK intelligence reach in the Balkans. This marks a notable intelligence operation against a prominent Russian military blogger, potentially straining Russia-Montenegro relations.