Grant Shapps has reportedly quit as International Development Minister as allegations of bullying within the Conservative party continue.
Allegations have been raised about the party following the apparent suicide of activist Elliot Johnson.
Mr Johnson’s father had called on Mr Shapps, a former party co-chairman, to resign over claims he ignored repeated warnings about the actions of party youth organiser Mark Clarke.
Mr Clarke has denied any wrongdoing.
The party has been subject to allegations of bullying, sexual assault and intimidation since Mr Johnson, 21, was found dead.
Prime Minister David Cameron said it was a “tragic loss of a talented young life”.