DAVID Cameron ridiculed Corbyn in the House of Commons with the quip “And I thought I was having a bad day” as pressure grows on the Labour leader to resign.

He managed to get the dig in while outlining the plan for Britain to leave the EU after last week’s referendum result.

4 David Cameron laughed at Jeremy Corbyn's problems during his speech in the House of Commons

With Jeremy Corbyn having to do a rapid reshuffle of his Shadow Cabinet as MPs keep quitting to try and force him out, the Prime Minister welcomed the new MP for Tooting, Rosena Allin-Khan, who was sworn in this afternoon.

And he advised her to keep her mobile phone on as she could be in the shadow cabinet by the end of the day.

He quipped: "And I thought I was having a bad day."

In his first statement to MPs after announcing he will step down, the PM says the EU referendum result was not the one he wanted but the Cabinet and he agree the decision of the British people must be respected.

Outlining a blueprint for how Britain will leave the EU he said: "It is going to be difficult. There will be challenging new negotiations to undertake with Europe.

"But I'm clear that the decision must be accepted and the process of implementing the decision must now begin."

He said we will not stand for hate crime or attacks on EU citizens and they must be stamped out.

The Prime Minister added that the markets were not expecting the referendum result but over the last few months robust plans have been put in place and the economy is well placed to face the challenges ahead.

And he told MPs a new civil service unit has been set up to prepare for the withdrawal negotiations and it will be staffed by the brightest and best in Westminster.

4 Labour leader Jeremy Corbyn says more has to be done to stamp out the racist incidents against EU citizens Credit: PA

4 Chancellor George Osborne and the David Cameron listen as Jeremy Corbyn responds to the Prime Minister's statement Credit: PA

He told the House he is going to a summit in Brussels tomorrow but will not invoke Article 50 immediately, he still believes this should be done by the next Prime Minister.

And he said: "Britain is leaving the European Union but we must not turn our backs on Europe or the rest of the world."

Many MPs made their feelings about Jeremy Corbyn explicitly clear by shouting "resign" when Jeremy Corbyn stood up to give his response to David Cameron's statement.

The Labour leader Jeremy Corbyn says much of the EU referendum campaign was divisive and the PM and the Home Secretary should crack down on the racist incidents that have happened since the result was announced.

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The Prime Minister said the discussions about a post-Brexit Britain will involve all the devolved governments.

But the SNP Westminster leader Angus Robertson said: "We have no intention of Scotland being taken out of the EU.

"That would be totally, totally unacceptable.

"We are a European country and we will stay a European country.

"If that means that we have to have an independence referendum to stay then so be it."

It comes after Mr Cameron held a tense first meeting of the Cabinet since the EU referendum result as his top team tries to re-unite to thrash out the way forward during a long 90 minute session.

4 MPs watch as David Cameron makes a statement to the House of Commons about Brexit Credit: PA

At the Cabinet meeting the ministers spoke about the EU referendum and condemned racist incidents which have taken place against EU citizens since the result was announced on Friday morning.

Demands from business bosses are spiralling for the government to spell out a clear Brexit timetable to end the crippling uncertainty, as the British Chamber of Commerce calls on ministers not to "duck important choices".

Former Labour chancellor Alistair Darling also insisted “we simply can't afford” to wait until a new PM is elected in October for a Brexit plan.

Lord Darling insisted: “If you leave a vacuum in politics, that's when the trouble starts".

David Cameron announced his resignation on Friday after a crushing defeat in the EU referendum.

In his resignation speech he said he wanted to see a new Tory leader in place by the party conference in October.