EDF Energy is to raise gas prices by 15.4% and electricity prices by 4.5% from 10 November, the company has announced.

It is the last of the "big six" energy companies to announce increases in prices for domestic customers.

It said it had absorbed wholesale price rises for as long as possible before being forced to raise costs for customers.

Regulator Ofgem is studying whether higher prices are justified.

"We have absorbed rising wholesale energy, network and other costs as long as possible but must reluctantly now pass some of these through to consumers," said Vincent de Rivaz, chief executive of EDF Energy.

The annual cost of a standard dual-fuel bill paid for by direct debit would rise to £1,165 from £1,051, the company said.