Nigel Farage strengthens grip as leader after Ukip deputy chairman Suzanne Evans and Patrick O'Flynn quit roles

Mr O'Flynn used the phrase 'snarling, thin-skinned and aggressive' about his party leader, but has since apologised for comments he claims were taken out of context

Nigel Farage shakes hands with Mark Reckless, the former Conservative Party member of Parliament for Rochester and Strood, on polling day (Reuters)

Nigel Farage has strengthened his grip over Ukip following the purging of two senior members of his team.

Suzanne Evans, the party's deputy chairman who wrote the party’s election manifesto has stood down from her paid development brief. She denied she has been involved in a plot to undermine Mr Farage.

Earlier, MEP Patrick O’Flynn stood down as the party’s economics spokesman after a public spat over Mr Farage’s continuing leadership.

It is though Ms Evans' role will be taken up by the former Tory MP Mark Reckless.

Patrick O'Flynn, Suzanne Evans and Nigel Farage in April (Getty) (Getty Images)

Mr O’Flynn had written comments in The Times newspaper that had been interpreted as critical of Mr Farage and had himself been subject to negative briefings by the leader’s close advisors.

“I would like to express to colleagues my sincere regret at going public with my frustrations about the turn of events following polling day. And more than that, I would like to apologise directly to Nigel for the phrase ‘snarling, thin-skinned and aggressive’,” he said in a resignation statement.

Patrick O'Flynn was Ukip's economic spokesperson and is an MEP (EPA)

“This was a fragment of a wider passage about perceptions and is not what I think of him. Nonetheless, I should have known better than anyone what use would be made of phrases that were both unfair and unkind.”

Mr O’Flynn had described a group of close advisors around Mr Farage as “wrong ‘uns”, while in apparent retaliation a source close to Mr Farage had accused the economic spokesperson of having “personal problems”.

The MEP described his own contribution to the debate about the party’s future as “unhelpful” and said he would take part in the campaign for Britain to leave the EU.

“I am proud of what we achieved in the general election and am only sorry to have succumbed, as Roger [Helmer] put it with such impressive understatement, to public remarks that were ‘unhelpful’. I think it appropriate to stand down as economics spokesman, which I have done,” he said.

“I hope in the months ahead to be of use to the great campaign to persuade the British people to leave the EU, which is after all what brought me into politics in the first place.”

Mr Farage stepped down as leader, as pledged, after he lost the race to become the MP for Thanet South.

But after presenting his resignation to Ukip’s national executive he was apparently rebuffed and told to remain as leader.

Rivals to the party leader appeared to make attempts to destabilise the leader and a minor civil war erupted in the party, lasting a number of days.

Ukip achieved a record vote share in the general election last week but ended up with fewer MPs than it went into the contest with.

Mr Farage failed to win his target constituency of Thanet South after a hard-fought contest, with only Douglas Carswell, a former Conservative defector, retaining his seat.