A student chosen to introduce Jeremy Corbyn at his local election launch has quit her senior post with a university Labour group after posting a series of racist, anti-Semitic and homophobic tweets.

Bethany Barker, who welcomed Mr Corbyn to the stage in Newark, Notts., last month, referred to the "n***** race", described a skull cap as a "Jew cap" and referred to another Twitter user as a "f****t".

The tweets were posted between 2012-2014 and Miss Barker said they did not represent her current views, but resigned as general secretary of Nottingham Labour Students.