Yorkshire Water owner Kelda has said it has received a takeover approach valuing the business at about £3 billion.

In a rare piece of merger and acquisition activity, Kelda revealed it was the subject of interest from an infrastructure consortium backed by the investment arms of leading City firms Citigroup and HSBC.

The bid team indicated that Kelda shareholders would receive £11 a share, including a dividend for the half-year period to September 30. There is no certainty that an offer would be forthcoming, Kelda said.

Yorkshire Water, which has its headquarters in Bradford and employs 970 people in the district, is Kelda's principal UK subsidiary, providing water and waste water services to more than 4.7 million people and 140,000 businesses.

Kelda Group, previously named Yorkshire Water, was originally formed following water company privatisations in 1989.

Kelda shares jumped 15 per cent to 1075p after the company confirmed market speculation about the bid approach.