Energy retailer EDF is selling electricity generated by a Russian company to another UK energy company, and this is despite the UK government having banned Russian gas exports in 2016.
The revelation came after a leaked document revealed EDF was selling gas to Gazprom in return for contracts to supply power to the Russian state-owned firm.
EDF said it would suspend the sales of electricity from its Russian energy assets and would work with the company to investigate.
The document was written by an EDF executive who is known for having strong views on energy issues and for being critical of the Russian government.
EDA is not the first energy retailer to sell gas to a Russia-linked energy firm.
Last year, Scottish power firm Scottish Renewables was fined by Scottish authorities for breaching a ban on Russian gas imports.
Scottish Renewable said it was unaware of any EDF sales of Russian gas.
A spokesman said: “We are working closely with EDF on a range of transactions with the Russian energy industry and have been transparent in all our transactions and our dealings with EDA.”
Scottish Renewals said it has never had a customer in Russia and has no plans to do so.
In February 2017, Russian state oil company Rosneft said it had purchased gas for its European subsidiary Gazprom from a Russian subsidiary, and Russian gas giant Gazprom also purchased energy from the same company.
Gazprom has also bought gas from a company called Russian Gas Trading.
The Scottish government said it “strongly condemns” any actions which could harm the UK energy industry.
Energy Secretary Amber Rudd said: “[It’s] not just energy.
The Scottish Government said it is considering introducing a new tax on gas imports and a levy on gas exports. “
It is important that the UK has the right and capability to be able to take the action it needs to ensure that we can keep our energy supply and our people safe.”
The Scottish Government said it is considering introducing a new tax on gas imports and a levy on gas exports.
The move comes amid reports that Russian gas firm Gazprom is buying up to 1bn cubic metres of natural gas a year.
The Russian company, Rosneftegas, recently announced a €15bn (US$19.7bn) investment to build its European gas infrastructure.
EAF’s purchase of gas from Gazprom was first revealed by the BBC’s James Cook.
The BBC reported that EDF had been buying gas from Rosnefergas since 2014.