Q&A: Why is Dominic Cummings leaving Downing Street?

Mr Cummings was seen leaving No 10 carrying a box on Friday evening amid reports he had quit his post with immediate effect. But why?

UK Prime Minister Boris Johnson’s top aide Dominic Cummings leaves Downing Street Picture" Yui Mok/PA

Boris Johnson’s chief adviser Dominic Cummings has only another few weeks working for the UK Prime Minister, with sources saying he will quit in mid-December.

Mr Cummings was seen leaving No 10 carrying a box on Friday evening amid reports he had quit his post with immediate effect.