Just a month into her life as a member of parliament, Labour's Rosie Duffield has found herself at the sharp end of political life - over Brexit.

The 45-year-old, Canterbury and Whitstable's first ever Labour MP, refused to support a Queen's Speech amendment which called on the UK to remain within the European Union's single market.

Within minutes of details of the vote being published, Ms Duffield was rounded on by critics who accused her of inconsistency.

Eurosceptic Conservatives and Europhile Lib Dems complained that during her election campaign she had stood on a "soft" Brexit ticket which involved remaining part of the EU's single market and the customs union.

But Ms Duffield was not among the 49 Labour MPs who backed an amendment tabled by former shadow business secretary Chuka Umunna which called on the UK to remain in the single market and customs unions.

Opponents argue this amounts to an effort to frustrate full Brexit.

Ms Duffield has denied being inconsistent and says that in addition to reasonable criticism, she has had to endure social media vitriol.

"One woman, who I believe is in her 60s and works at a university, called me a 'cow'," Ms Duffield said.

"Another asked me how I could look at myself in the mirror. I also get late night messages from this guy who has trolled me for a while.

"I suspect there are also people using fake accounts to attack me. Some of it is really nasty. I don't know why people do it."

A total of 49 Labour MPs defied a party whip to abstain on Mr Umunna's amendment, prompting leader Jeremy Corbyn to sack three front-benchers while a fourth quit voluntarily.

Ms Duffield went on: "I read Chuka Umunna's amendment and signed it. But then I read, the one put forward by Jeremy Corbyn's team and that is the one I am supporting.

"It was so much fuller and up-to-date than the Umunna amendment. My position is not inconsistent. During the campaign, I did not make promises I could not deliver.

"I've got to represent everyone and my position is that if we are leaving the European Union, then we cannot be part of the single market, but we can be in the best position to benefit from it.

"We need a strong negotiating position and all May's team seems to be giving us is a lot of bluster."

"There are people out there, however, trying to stir things up and they have been putting things on social media that amount to absolute rubbish."

Mr Umunna's amendment was defeated 322-101 in the House of Commons last night.

Among those focusing on Ms Duffield's politics is Alex Lister, who worked for the Lib Dems during the election.

He said: "Rosie had the chance to vote in favour of staying in the single market and by choosing not to she betrayed everyone who campaigned alongside her during the referendum campaign and everyone who she made promises to during the general election.

"Being 'new' isn't an excuse for betrayal. She has her own free will.

"She has begun blocking people who disagree with her on Twitter. She knows this has the capacity to blow up in her face if there's another election soon."