Simon Dedman
BBC Essex political reporter

Every area in Essex voted out and 62% of the county backed Brexit.

Despite the rain, thunder and floods yesterday, turnout was significantly higher than at the last General Election – it was 80% in Brentwood and Uttlesford.

A large majority for Leave in Essex was anticipated. Many will be cheering and some will be partying today.

But there were 376,371 people who voted Remain. Since then, they've travelled to work, taken the kids to school, or gone to the supermarket and worried about what their future holds.

The Conservative MP for Great Yarmouth and Housing Minister Brandon Lewis has tweeted on the prime minister's decision to step down: 

The Conservative MP for South Norfolk, Richard Bacon, backed the campaign for the UK to leave the EU, and has just issued this statement: 

"This is an excellent result for the British people. We can now forge a new relationship with our friends and neighbours in Europe based on co-operation and free trade, not on our participation in an evolving superstate which most people do not want.

"We will now see Parliament's restoration as our supreme law-making body. We will also regain our own seat at the table of the World Trade Organisation, which means that we can start to negotiate deals ourselves without having to wait in the slow lane with Brussels holding things up.”

As Sterling hits its lowest level for three decades, Mid Norfolk MP George Freeman tweets:

As the East of England shows its Brexit colours, you've been having your say on the result at the BBC Look East Facebook page, external.

Normal Lamb, the Liberal Democrat MP for North Norfolk and former health minister, says he thinks David Cameron's resignation was inevitable.

"If you put a case to the nation and your authority rejects it, your authority drains away," he said.

Farmer and UKIP MEP for the East of England Stuart Agnew has had his say on the Leave vote...

Witham MP and Leave supporter Priti Patel says she's saddened to see David Cameron announce his resignation.

Image source, PA

"His statement was dignified and honourable and he deserves great credit for the character he has shown," she said.

Of the referendum result, Ms Patel said: "Hope has prevailed over fear and we now have a huge range of possibilities ahead of us as we embark on a new chapter in our country’s history."

This is how the people of Cambridgeshire voted in the EU Referendum.

As you can see, Cambridge and South Cambridgeshire were the only districts out of six in the county that voted to remain in the EU. 

In Cambridge people voted nearly three to one to remain. The margins were much closer in South Cambridgeshire.  

The turnout was above 70% in all areas. 

Giving his reaction to David Cameron's resignation announcement, Braintree MP James Cleverly refused to speculate about who might be the next Prime Minister.

"This is not the kind of thing to do on a whim," he told BBC Essex.

"The Prime Minister made it very clear he's staying on so we can have an orderly and sensible transition to whoever the next leader of the Conservative Party might be."

David Cameron's resignation has prompted a huge amount of tweets reacting to the news.

Vicky Ford, a Conservative MEP for the East of England, says she will be having a bit of "quiet reflection".

Keith Simpson, Tory MP for Broadland, gave his reaction to David Cameron's decision to stand down on BBC Radio Norfolk's Nick Conrad show.

The process for the UK's withdrawal from the European Union is not a simple process.

• The UK remains a member of the EU at this stage
• The process has already begun with David Cameron announcing he is stepping down as Prime Minister
• A statement to Parliament will follow on Monday - or earlier if MPs demand a special sitting
• Leaving the EU is not automatic. The UK's departure has to be negotiated with the remaining members within two years
• The European Parliament has a veto over any new agreement on relationship between UK and EU
• Britain could technically ignore 'rules' and simply write the EU out of its laws, but that would not make future negotiations and easier

The MP for Norwich North, Chloe Smith, gave her reaction to the news of the vote for Britain to leave the EU and David Cameron's resignation, on the Nick Conrad show on BBC Radio Norfolk.

"We all need to come together and work for what is best for our own constituencies and our own country - we are one country we are one Great Britain and let's stay that way," she said.

All 14 council areas in Essex voted to leave the EU. 

Castle Point had the highest proportion to Leave at 73%. People living in Uttlesford were the most pro-Remain with 49.3% voting in favour.

Here are the details in full... brace yourself for some serious scrolling action, this is a long one.

Graham Butland, the Conservative leader of Braintree District Council, questioned his party's attitude over Europe.

Richard Haugh
BBC News

Therese Coffey, Conservative MP for Suffolk Coastal, says it is "sad" that David Cameron has resigned.

"It was only a year ago he won a tremendous election and he was working hard to deliver our manifesto," Ms Coffey said.

"But I understand and respect his decision."

Labour MEP Richard Howitt has given his views on David Cameron's resignation announcement:

Here's the Central Suffolk and North Ipswich MP's reaction:

Richard Haugh
BBC News

James Cartlidge, Conservative MP for South Suffolk, said it was "mindblowing" to hear David Cameron was resigning.

"To hear he is stepping down is stunning and incredibly sad news," Mr Cartlidge said. "He has been an excellent prime minister.

"This is someone who has to run the country every day and he does it in a way that I think we've underestimated on many occasions.

"He's very calm, he has great charisma and strength of personality - and I think you saw that in the way he just delivered that statement.

"He is a statesman, and I think by God we will miss him."