More on this story: Election results live
Nuneaton, the first of many Tory-Labour marginals, has announced a Conservative victory, with Marcus Jones being declared its MP. The party gained 20,827 votes, against Labour's 15,945.
The Liberal Democrats again faced wipeout in the constituency, gaining just 816 votes.
Lord Ashcroft's polls predicted a Labour win in Nuneaton with 39 per cent of the vote - with the party five percentage points ahead of the Tories.
Such a result could bode badly for Labour, losing out on the type of seat needed for the party to gain ground in Westminster. The Tories won Nuneaton with a 2.23 per cent majority in 2010 - the 29th tightest Tory-Labour marginal. It has increased its majority this time round.
The Tory win reflects Ipsos-Mori's exit poll which suggested the Conservative Party would gain 316 seats - just 10 short of an outright majority.