Nigel Farage has been branded “unbelievably insensitive and crass” after claiming the Leave party had emerged victorious in the EU referendum “without a single bullet being fired” in a preemptive victory speech.

The Ukip leader was accused of "bad taste" with his comment, which came just over a week after the killing of Labour MP Jo Cox, who was shot and stabbed to death.

In a speech delivered at a rally in central London as results suggested a Brexit was looking increasingly likely, Mr Farage declared the night a “victory for real people, a victory for ordinary people, a victory for decent people”.

“We have fought against the multinationals, we have fought against the big merchant banks, we have fought against big politics, we have fought against lies, corruption and deceit,” he went on.

EU referendum - in pictures Show all 18 1 /18 EU referendum - in pictures EU referendum - in pictures A woman in a wheelchair with British and European Union flags shows her support for the United Kingdom to remain in the European Union on the day of the EU Referendum in Gibraltar Getty Images EU referendum - in pictures A polling station being used in the EU referendum at Batley Town Hall in the constituency Labour MP Jo Cox PA EU referendum - in pictures People arrive to vote in the EU Referendum at the Library where British MP Jo Cox was shot and fatally wounded last week in Birstall EPA EU referendum - in pictures A man arrives to vote at a polling station for the Referendum on the European Union in north London REUTERS EU referendum - in pictures Voters queue to enter a polling station at Trinity Church in Golders Green in London Getty Images EU referendum - in pictures British Prime Minister David Cameron and his wife Samantha Cameron leave after voting in the EU Referendum at Central Methodist Hall, Westminster Getty Images EU referendum - in pictures Labour Party leader Jeremy Corbyn cast his vote at a polling station at Pakeman Primary School in Islington Getty Images EU referendum - in pictures Chelsea pensioners arrive at a polling station near to the Royal Chelsea Hospital PA EU referendum - in pictures A woman wearing an "I'm In" t-shirt, promoting the official "Remain" campaign, leaves a polling station in London AFP/Getty Images EU referendum - in pictures People queuing outside a polling station on Amott Road in London PA EU referendum - in pictures Scotland's First Minister and Leader of the Scottish National Party (SNP), Nicola Sturgeon and her husband Peter Murrell, react as leave after casting their votes at a polling station at Broomhouse Community Hall in east Glasgow AFP/Getty Images EU referendum - in pictures A man wearing a European themed cycling jersey leaves after voting at a polling station for the Referendum on the European Union in north London REUTERS EU referendum - in pictures Ukip leader Nigel Farage arrives to cast his vote at Cudham Church of England Primary School in Biggin Hill, Kent PA EU referendum - in pictures Justice Secretary and prominent 'Vote Leave' campaigner Michael Gove poses with his wife Sarah Vine after voting in the European Union referendum at their local polling station in Kensington Getty EU referendum - in pictures Nuns leave a polling station after voting in the EU Referendum in London EPA EU referendum - in pictures People arrive to cast their ballots in the EU Referendum in Gibraltar. The United Kingdom and its dependant territories are going to the polls to decide whether or not the the United Kingdom will remain in the European Union Getty Images EU referendum - in pictures A man driving a van covered in stickers urging people to vote for the United Kingdom to remain in the European Union drives outside a polling station on the day of the EU Referendum in Gibraltar Getty Images EU referendum - in pictures A sign on a gable wall in Belfast's, Loyalist Tigers Bay urging voters to leave the EU using scripture from Revelation 18:4, as voters head to the polls across the UK in a historic referendum on whether the UK should remain a member of the European Union or leave PA

“And today honesty, decency and belief in nation, I think now is going to win.

“And we will have done it without having to fight, without a single bullet being fired, we'd have done it by damned hard work on the ground.”

His reference to a bullet sparked a furious response on Twitter, which came eight days after the death of Ms Cox, who was attacked in her constituency in Birstall ahead of her weekly surgery.

Mr Farage also called for David Cameron to resign as Prime Minister immediately as senior pro-Brexit Tories backed him to stay on in the event of Britain withdrawing from the EU.