BBC News presenter Martine Croxall was taken off air following a breach of impartiality during Sunday night's edition of The Papers.
The BBC has now ruled that 'several remarks and reactions' made by the presenter caused a 'significant risk' that the audience could believe 'opinions were being expressed' on the Conservative leadership contest.
During her introduction to the programme, which started at 10.30pm on Sunday around 90 minutes after Boris Johnson pulled out of the Tory leadership race, Croxall said: "Well this is all very exciting isn't it?"