ProUkraine hacking team “GhostSec” claimed cyberattack on the Gysinoozerskaya power station

The pro-Ukraine cyberHacktivist group "GhostSec" claimed responsibility for the explosion at a Russian power plant in Gysinoozerskaya, Buryatia region. The explosion took place on June 23 and was not claimed until July 20.
The GhostSec group considers itself a group without a nation and associates itself only with ideological movements of circumstance: pro-Palestinian and anti-Israeli struggle, support for the anonymous group, and in this case pro-Ukraine and anti-Russian.
The group claims that its ICS attack was successful, causing a malfunction and then a fire that led to the explosion, and that there were ultimately no civilian casualties.

Read more about it: here and here