A student who introduced Jeremy Corbyn at a campaign launch posted a series of racist and ant-Semitic tweets in which she talked about blacking up and used the n-word.

Bethany Barker has apologised for the 'disgusting' tweets and quit as general secretary of Nottingham Labour Students Committee after the messages were uncovered.

Ms Barker introduced Mr Corbyn at his local election campaign launch in Newark, Nottingham last month and the revelations are a major embarrassment to Labour.

Bethany Barker has quit from her role on Nottingham Labour Students Committee after offensive tweets she sent emerged

Bethany Barker has apologised for the 'disgusting' tweets and quit as general secretary of Nottingham Labour Students Committee

Ms Barker and Jeremy Corbyn arrive at the campaign rally, where the student served as the warm up act for the Labour leader

Mr Corbyn appeared alongside the student at Labour's local election campaign launch in Nottinghamshire last month

In one tweet she wrote: 'I cooked brandon chicken and rice, supporting the n***** race.'

In another she wrote: 'My dad just said I'm going to black myself up for my birthday tomorrow and be a n**** for a day.'

In another she said: 'I hate bbc one f***ing c***s black f***ing b**** I hate everyone #mayday.'

In another she describes a skull cap as a 'jew cap' and says the Norwegian far right terrorist Anders Behring Breivik - who killed 77 people in an armed rampage in 2011 - should 'go get slaughtered by a bunch of muslims and get forced to live in a synagogue'.

The tweets were posted by Ms Barker, who describes herself as a 'feminist and pino grigio enthusiast', between 2012 and 2014 from an account which has now been deleted.

University of Nottingham Labour Students said they condemned the messages.

In a statement, Ms Barker said: 'As some of you may have seen online, some anti-Semitic, homophobic, and racist tweets have resurfaced from my old Twitter account from 2012-14'

Jeremy Corbyn at the campaign rally in Newark in Nottinghamshire last month, where he was introduced by Bethany Barker

In a statement, Ms Barker said: 'As some of you may have seen online, some anti-Semitic, homophobic, and racist tweets have resurfaced from my old Twitter account from 2012-14.

'I understand the upset that these comments have caused and I want to extend my sincerest apologies to anyone that I have offended.

'I am appalled and ashamed by these comments and I condemn them in their entirety; they are outrageous and wrong and I should have never said them.'

She said she has apologised for the comments and wants to make amends for the 'mistakes' she has made.

She said: 'I would like to take this opportunity to apologise to all of you reading this, too.

'These views are clearly not in line with what I believe today and do not reflect my character.

Labour leader Jeremy Corbyn after speaking in Morley, Leeds today

Jeremy Corbyn, pictured getting on to his campaign battle bus in Manchester today. he was introduced at a campaign rally last month by Ms Barker

'I have grown up, developed and matured a lot since I was 14 years-old to the point where, looking back, I find it hard to recognise that person as myself.

'I am proud of how far I have come since then and will do everything in my power to make amends for the mistakes that I have made.'

In a statement, Nottingham Labour Students said the committee 'condemns these comments and would like to state that it is not representative of the Nottingham Labour Students Committee or our members.'

A Labour Party spokesman said: 'We have noted Bethany Barker's resignation as General Secretary of Nottingham Labour students and her apology.

'We don't comment on individuals' membership status.'