Experts suggest there are security lapses surrounding Russia's military elite after the Moscow bombing on 1 August, which claimed three lives. The attack took place at an upscale restaurant in the capital, further raising questions about the security surrounding senior military figures.
Dr Mark Episkopos, a Eurasia research fellow at the Quincy Institute for Responsible Statecraft, said in an interview that despite President Vladimir Putin's efforts to preserve a sense of 'normalcy' in Moscow and St Petersburg, Ukraine has been able to exploit vulnerabilities.