Deputy Prime Minister Nick Clegg has warned that energy companies risk "exhausting" public confidence if they keep raising bills.
Speaking on The Agenda with Tom Bradby, he said:
In any developed capitalist economy you can't operate in a vacuum ... Profit is what drives a lot of these things but you can't operate without public consent ...
I think they do need to be very careful that they don't sort of exhaust public consent and confidence that they're doing the right thing by these very, very significant price hikes.
Watch The Agenda on ITV at 10.35pm tonight
More top news
The attack on a college in Garissa, Kenya, comes a day after President Uhuru Kenyatta declared: ''Kenya is safe".
The pre-trial hearing for a British banker, accused of murdering two women in Hong Kong last November, was adjourned for five weeks.
Conservationists say one of the UK's most threatened butterflies has recorded its best year for a decade following 2014's warm spring.