Estonia's domestic security agency said it has detained 10 people on suspicion of being involved with a "hybrid operation" organized by Russia's special services to "spread fear and create tension."
Apart from capturing Avdiivka, the advances have renewed an agonising choice for Ukrainians in places like Selydove that could be next: flee now or hope their struggling army can save them.
Beyond Avdiivka, Ukrainians fear their town could be next firstpost.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from firstpost.com Daily Mail and Mail on Sunday newspapers.
German Chancellor Olaf Scholz has opened discussions at the Munich Security Conference. Ukrainian President Volodymyr Zelenskyy also rallied Western leaders against the threat from Russia. DW has the latest.