Household energy prices in the UK are to increase by 13% from July.
Britain's energy regulator Ofgem will increase its price cap due to the ongoing conflict in the Middle East and an increase in wholesale gas prices, it said.
The jump will equate to a rise of £18 a month for the average household using both electricity and gas, with households seeing an increase of 24% on their gas bills and 5% on their electricity bills.
The UK regulator said that a typical household will pay £221 more a year, with an annual bill of £1,862.
UK's Energy Secretary Ed Miliband called the rise in the price cap "because of a war we did not choose deeply unwelcome news for households across the country".
"We will continue to monitor the situation ahead of the winter and plan for all contingencies. In the immediate term, it is essential to de-escalate this conflict to bring oil and gas prices down."
