Voters have until midnight today to ensure they are registered to vote in next month’s nail-biting general election.

Earlier this month, the Ham&High launched its #MakeYourMark campaign calling on voters in Hampstead and Kilburn to register by the April 20 deadline so they can have their say in England’s tightest three-way marginal seat on May 7.

In 2010, there were just 42 votes separating victors Labour and the Conservatives, with the Liberal Democrats around 800 votes short of the winners.

But staggeringly in 2010, there were reportedly 17,000 missing voters in Hampstead and Kilburn who were not registered.

Last year, a change to the electoral register requiring voters to sign up individually rather than as a household meant more than 2,000 voters in Hampstead and Kilburn fell off the register.

To register to vote by midnight, visit gov.uk/register-to-vote