Rihanna is to be sued by her former head of security for allegedly making defamatory comments aimed at him.

Geoffrey Keating who is from Finglas, Dublin is suing the singer for comments she made to him in an email back in July 2013.

He was serving as her head of security during her tour between October 2012 and July 2013.

Specific details of the email which was addressed to Keating and his wife have not yet been disclosed although the lawsuit describes it as being "nauseatingly offensive".

The suit goes on to detail that Keating's business has been damaged by the accusations.

As part of the lawsuit, Keating is seeking an undisclosed amount in damages.