Britainís three main political parties are today expected to unite against the News Corp bid for BSkyB.

The governing Conservative and Liberal Democratic parties are to vote for a motion brought by the opposition Labour party that calls for News Corp to drop its bid while the investigations into alleged phone hacking at the News of the World continue.

It follows a meeting between the three party leaders; Conservative Prime Minister David Cameron, his Liberal Democrat Deputy Nick Clegg and opposition leader, Labourís Ed Miliband.

Yesterday (Tuesday), it was announced that the Commons Culture, Media and Sport Committee had decided to call Rupert Murdoch, James Murdoch, and Rebekah Brooks to give evidence on developments in the phone hacking scandal.

As a British citizen only Brooks, the chief executive of News International, can be compelled to appear.

Separately, News Corp has announced plans for a $5 billion (Ä3.59bn) share buyback following a significant reduction in its share price since the phone hacking scandal re-emerged.