SIR KEIR STARMER has urged Boris Johnson to convene an urgent Cobra meeting to review the Christmas relaxation of Covid-19 restrictions, following a sharp rise in cases over the past week. 

In a letter to the Prime Minister today the Labour leader accused ministers of risking a third wave in the new year by allowing unlimited numbers from up to three households to socialise together between December 23 and 27.

Downing Street has so far insisted there are no plans to change the “Christmas bubble” policy, despite increasing concerns.