Although the UK is not reliant on Nord Stream 1 for its gas, the recent increase in the cost of wholesale gas has been behind the spiralling rise in the energy price cap for consumers.
Tory leadership hopeful Liz Truss has promised to announce a plan to deal with soaring energy costs within a week if she becomes prime minister on Tuesday. Her rival, Rishi Sunak, has said he will target further payments aimed at the poorest.
However, UK businesses are not protected by a price cap and, last week, the British Chambers of Commerce warned firms would "close their doors this winter" if they were not given support with soaring bills.
A number of European governments have revealed plans to help businesses and consumers cope with surging energy costs. On Sunday, Germany announced a €65bn (£56.2bn) package which includes one-off payments to the most vulnerable and tax breaks to energy-intensive firms.
It has blamed the sanctions for holding up routine maintenance of Nord Stream 1, but this is disputed by the European Union.
The introduction of a price cap means countries that sign up to the policy will be permitted to purchase only Russian oil and petroleum products transported via sea that are sold at or below the price cap.
The Nord Stream 1 pipeline stretches from the Russian coast near St Petersburg to north-eastern Germany and can carry up to 170 million cubic metres of gas a day.
This is not the first time since Russia's invasion of Ukraine that the pipeline has been closed.