In Moscow, residents reported hearing explosions and Mayor Sergei Sobyanin later confirmed there had been a drone attack.

Source: https://businessmirror.com.ph/2023/05/30/russias-pre-dawn-air-raid-on-kyiv-kills-1-moscow-attacked-by-drones/

Mayor Sergei Sobyanin said some of those injured had suffered burns, and that emergency services were working on the scene.

Source: https://www.independent.co.uk/news/world/europe/russia-ukraine-counteroffensive-putin-latest-b2380054.html

Moscow Mayor Sergei Sobyanin on Tuesday said a drone has struck a building in the Russian capital which was hit three days ago.

Source: https://www.canindia.com/drone-hits-same-building-in-moscow-in-3-days-mayor-20/

The current mayor, Sergei Sobyanin, who is close to the Kremlin but surprisingly discreet about the conflict in Ukraine, is heavily favored to be re-elected.

Source: https://worldcrunch.com/culture-society/relationship-contract