- Alleged ‘terrorist’ attack in West Russia fuels hard-line pressure on Putin The Washington Post
- Putin accuses Ukraine of ‘terrorist attack’ in Russia. CNN investigates the claim CNN
- Why purported cross-border attack ups ante in Ukraine war The Associated Press – en Español
- Russian far-right fighter claims border stunt exposes Putin’s weakness Financial Times
- A Murky Incursion: Who Are The Russian Volunteer Corps? Radio Free Europe / Radio Liberty
Source: Alleged ‘terrorist’ attack in West Russia fuels hard-line pressure on Putin – The Washington Post