Labour is on course to suffer its worst performance in at least 40 years in the local elections in England and Wales.
BBC research suggests the party has fallen into third place nationally with 24% of votes, with the Conservatives on 44% and Lib Dems on 25%.
So far Labour has lost more than 160 seats with the Tories gaining 147.
Conservative leader David Cameron called it a "big moment". Labour's chief whip Geoff Hoon insisted there was "no crisis" for Gordon Brown.Elections expert John Curtice, of Strathclyde University, said: "It looks quite possible that by the time all the results are declared some time on Friday afternoon, Labour will have suffered at least 200 net losses, widely regarded before polling day as the worst possible outcome that could befall the party."BBC NEWS | UK | UK Politics | Labour suffers big council lossesSo far the Tories have a net increase of more than 140 councillors and a 4% higher share of the national vote than at last year's local polls.
Such a share in a general election would have the potential to give the party a Commons majority of 138.
Shadow foreign secretary William Hague said: "These are exceptional results and this could be the lowest Labour share of the vote in the modern history of local elections¿ This is a big step forward."