Britain's Brexit leaders have been condemned as "rats deserting a sinking ship" by MEPs.

Nigel Farage and Boris Johnson were singled out as shirkers for their personal decisions following the vote to leave the EU.

In a debate in the European Parliament, MEPs of various parties, across countries vented their anger at the Tory and Ukip politicians.

READ MORE: Nicola Sturgeon brands Tories 'inhumane' over failure to guarantee legal status of EU nationals in Scotland

There were also warnings from across political groups that the EU leaders must heed the lessons of the referendum and reform or the union will die.

The high profile departures and twists and turns in the Conservative leadership battle have stunned European politicians watching from across the English Channel.

After the EU Commission President Jean-Claude Juncker attacked Mr Farage others joined in but with warnings for Mr Juncker.

READ MORE: Nicola Sturgeon brands Tories 'inhumane' over failure to guarantee legal status of EU nationals in Scotland

The president said: "Patriots don't resign when things get difficult they stay."

Guy Verhofstadt of the Alliance of Liberals and Democrats was among the most vociferous in his condemnation.

He said: "The Brexiteers have no clue what needs to be done.

"They are rats fleeing a sinking ship.

"Cameron, resigned, Johnson abandoned and Farage wants more time to himself and his family to spend his European salary no doubt."

READ MORE: Nicola Sturgeon brands Tories 'inhumane' over failure to guarantee legal status of EU nationals in Scotland

Mr Verhofstadt, a former Belgian Prime Minister, said what happened in Britain was an "earthquake" and warned change must come.

He asked if the EU must wait for more referendums in say France or Italy before it acts?

He warned: "More of the same will not get us out of this crisis.

"You are sleepwalking towards disaster, towards 27 other referendums. The union will change or die."

Italian MEP, Gianni Pittella, of the Socialist and Democrat group, said the EU can't wait for the UK Tories to chose a new leader before deciding on the future.

He also criticised the Brexit leaders.

He said: "The heroes of the disaster have left the whole country in ruins."

Gabriele Zimmer, of the European United Left group, said the EU will fail unless it changes direction.

The German MEP also criticised Boris Johnson and the leave leaders for their cavalier attitude to the campaign.

She said: "They have behaved like children, building a tower of wooden blocks to knock them down."

She added: "The EU is not a toy to kick against the wall then laugh at what you have destroyed."

She too warned reform was essential, adding: "If we don't change this EU to an EU of the countries, it will fail."

Others said Nigel Farage, who is due to speak in Strasbourg at the Parliament today, had "shirked responsibility".

Some British MEPs defended the referendum result and added their voices to the calls for change.

Syed Kamall, Conservative MEP, said the more the EU Commission puts pressure on the UK to act on triggering Article 50 to leave quickly, the more it legitimises the decision to leave.

He added: "Listen to those who want politicians to create jobs and growth rather than create political Utopias."

Paul Nuttall of Ukip was jeered by some others as he said the deal between the EU and UK must not put trade at risk, stating Britain was a huge market for French farmers, for champagne and German cars.

He said:" let's conduct this in a grown up manner to get the best deal for Britain and for the EU."