Ahead of Britain's May 7 election, opposition Labour Party's lead narrowed 1 percentage point over Prime Minister David Cameron's Conservatives, according to a YouGov poll for The Sun newspaper published on Sunday, Reuters reported. Polling company YouGov said 35 percent of voters supported the Labour Party, down 1 point from the previous day, versus 34 percent for the Conservatives, up 1 percent respectively. The anti-European Union UK Independence Party, or UKIP, stood unchanged at 13 percent. The two main parties have been neck-and-neck in the polls since the beginning of the year, with neither establishing a lead beyond the typical 3 percentage point margin of error in most surveys. Opinion polls have consistently shown that neither the Conservatives nor Labour are likely to win an overall majority in the 650-seat Parliament.