According to the British newspaper, The Telegraph, hackers linked to the Islamic Republic of Iran have targeted a British power plant, taking it offline for four days.

Notably, this is believed to be the first time that hackers affiliated with the Islamic Republic have successfully carried out this type of attack on energy facilities in Britain. The incident reportedly occured in July, around the same month a series of attacks on water facilities across the United States unfolded, affecting 12 states and raising concerns at the White House. These attacks caused water mains to burst, network pressure to drop, and advisories to boil drinking water in some areas.

Interestingly, British authorities haven’t revealed the name of the targeted power plant due to security considerations, but it’s been said that it was a relatively small plant and had no impact on Britain’s overall electricity supply or generation capacity. The UK’s National Cyber Security Centre (NCSC), which deals with cyber incidents and coordinates the government’s response to affected organizations, is set to issue an advisory notice.

Amidst increasing tensions between Iran, the United States, and Israel, Iranian-linked hacking groups have significantly increased their activity against Western countries. In response to this recent event, the British government emphasized that the country has a “very resilient energy system” and added that the government must protect their infrastructure and maintain the highest standards of security, working closely with the energy sector.