Flying in attack formation, the group of Su-24 attack aircraft turned away just before Norwegian airspace.
Bulgaria’s chief prosecutor said that a suspected Russian intelligence officer, with a reported link to the poisoning of Sergei Skripal, had visited Bulgaria before another high-profile poisoning.
https://www.nytimes.com/2019/02/11/world/europe/bulgaria-poisoning-russia-skripal.html
https://www.radiosvoboda.org/a/vasha-svoboda-putin-vybory-sposterihachi/29764103.html
https://www.obozrevatel.com/russia/porebrik-news2.htm
https://novosti.dn.ua/article/7236-ydeya-ob-avtonomyy-donbassa-vzbudorazhyla-rossyyskye-smy
http://expert.ru/expert/2019/07/halifat-na-rossijskoj-granitse/
https://www.kommersant.ru/doc/3860202
https://www.gazeta.ru/comments/2019/02/10_a_12165229.shtml