By Jonathan Davies

BT has reignited its feud with Sky after calling on Ofcom to address concerns over its rival's dominance of the pay-TV market.

John Petter, chief executive of BT's consumer division, has asked the communications regulator to broaden the Digital Communications Review to investigate and tackle Sky's dominance.

It comes after Sky called for Openreach, the UK's national broadband network, to be split from BT's ownership.

As part of the review, Ofcom said it welcomed "evidence and analysis from all parties".

"Whereas in the energy market regulators have criticised the Big Six operators, in pay-TV Sky has a 64% share, so there is really only the Big One," Mr Petter said in a speech to the Broadcasting Press Guild.

He said: "Switching in pay-TV is 50% lower than the levels seen in broadband, so it is clear we just aren't seeing the right levels of competition for Sky."

A Sky spokesperson said: "The reality is that, in a competitive market, customers are choosing Sky in greater numbers and staying with us for longer because of the quality and value that we offer.

"This looks like an attempt to deflect attention from the real problems that exist in broadband, where consumers are suffering because of BT's underinvestment and there is concern about competition in the future."