Asked about the profits of the British Gas owner Centrica rising by 11%, the Prime Minister's spokesman said:
What consumers and the industry expect is that the Government and the regulator should be working together to help families.
That's what we are doing and that's why the Energy Bill will enshrine in law the PM's desire that consumers get the best tariffs.
More top news
The family of the bus driver who was involved in Saturday's crash has said he is "devastated to the core" about what has happened.
A headteacher has payed tribute to a seven-year-old boy who was killed in a bus crash in Coventry at the weekend.
The daughter of a woman killed when a double-decker bus crashed into a Sainsbury's has told ITV News she will be "sadly missed by all".