Live updates: EU referendum

David Cameron offered a stark warning about the economic risks of leaving the EU as he joined Labour's Harriet Harman and figures from the Liberal Democrats and Greens in a cross-party appeal to voters.

The Prime Minister said that leaving the bloc would be putting a "bomb" under the economy in which Britons had lit the fuse themselves, reports ITV News political editor Robert Peston.

Ms Harman faced questions over why the Labour leader Jeremy Corbyn had not made an appearance at the event, but argued that the party was also running it's own pro-EU campaign.

Meanwhile Boris Johnson was campaigning for Vote Leave at a soap business as he tried to show they were nothing grubby about their campaign.

However, with both sides poles apart on the potential impact of a Brexit, the vote is increasingly playing into voter's sense of identity and who they want to be.

David Cameron said that a Brexit would put a "bomb under the economy" as presented a unified front with Labour and Green politicians to promote the 'In' camp, reports TV News political correspondent Libby Wiener.

He accused the Leave camp of guiding Britain towards economic ruin based on lies as the debate continues to heat up.

Meanwhile Boris Johnson and Vote Leave were at a shampoo and handwash distribution centre as they aimed to show themselves as the clean face of the debate.

However they had a negative message, warning that remaining in the EU would leave the UK powerless to prevent increased migration.

They were claims of hypocrisy after the boss of the company that hosted the Leave event admitted he employed few English staff.

He said high employment in the area meant it was hard to find homegrown staff - but said he still believed leaving the UK would benefit his company.

A predicted fall in house prices if Britain votes to leave the EU would not help young people get on the property ladder and might even make homes less affordable, the housing minister has said.

Brandon Lewis was challenged over claims that a vote to leave the bloc could lead to a fall in the property market.

Tory Eurosceptic MP Michael Fabricant suggested that any such change might be "possibly a good thing for creating affordable housing".

The minister replied that investor turmoil after a Brexit would trap thousands in negative equity and also raise the cost of borrowing for a mortgage.

Young people have rushed to sign up to vote ahead of the upcoming EU referendum, data from the Electoral Commission shows.

More than 1.35 million people have registered online in the past few weeks, more than half of whom are aged under 35.

The surge comes after an information campaign urging people to take up their right to a ballot ahead of the national EU vote on June 23.

It has warned that people have just one day left to register and ensure their voice is heard.

• EU referendum: Where, when and how to cast your vote

The Institute of Fiscal Studies (IFS) has rejected Leave campaigner Michael Gove's claim that the body had said leaving the EU would free up £8 billion to spend on the NHS.

In a statement, the IFS said "we have not said that," and clarified its actual assessment of the likely public finance implications.

"We conclude that the net UK contribution to the EU over the next few years is indeed likely to be about £8 billion a year, £8 billion which would become available for other things were we to leave".

"However we also point out that even a small negative effect of just 0.6% on national income from leaving the EU would damage the public finances by more than that £8 billion," it added.

Vote Leave chief executive Matthew Elliott hit back, saying the UK only got back half of its £350 million-a-week contribution to the bloc, adding: "We reject the predictions of doom by the EU-funded IFS."

ITV News' Political Editor Robert Peston asks Leave campaigners, in the event of a Brexit, how many years would it take to deliver the promise to reduce the price of energy and put more money into the health service?

• Live updates: EU Referendum

After Harriet Harman appeared alongside David Cameron to campaign for a Remain vote, our deputy political editor asked the Labour leader Jeremy Corbyn's office for their reaction:

A Brexit economic shockwave would hit Northern Ireland extremely hard, George Osborne has warned.

The chancellor chose a visit to Warrenpoint Port in Co Down, which is a stone's throw from the Irish Republic, to outline his fears if there is a vote to exit the European Union on June 23.

Pointing to the Carlingford Lough waterway which separates the jurisdictions, Mr Osborne said: