Brook pulled out in order to spend time with her family Kelly in rehearsals

The 28-year-old had vowed to continue rehearsals for Saturday's live show in his memory, but found it "too difficult", said a BBC spokeswoman.

Brook's father, Kenneth, 57, died following a long battle with cancer.

"Kelly has been a fantastic part of the programme and will be sorely missed by everyone on the show," she added.

Two dances

The spokeswoman said that the programme's participants "would also like to express their deepest sympathy to Kelly and her family at this difficult time".

Brook and professional dance partner Brendan Cole had been among the favourites to win the series.

Brook was partnered by professional dancer Brendan Cole

"Kelly would like to wish the remaining contestants the best of luck and thank everyone for their support," said her spokesman in a statement.

The former Big Breakfast presenter is engaged to Titanic actor Billy Zane.

In last week's show Brook and Cole's performance was criticised by the judges, who said they had not performed to their usual high standard.

Cole reacted angrily to the judges comments, claiming he and Brook only had eight hours to rehearse the routines.

The couple ended up in the bottom two after the viewers' vote - but they were saved from being ejected after judges chose former England footballer John Barnes to leave instead.

Saturday's show is the first time the remaining couples will perform two dances.

Singer Alesha Dixon, actress Letitia Dean, former rugby star Kenny Logan, Blue Peter host Gethin Jones and EastEnders actor Matt D'Angelo are still in the competition.