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11.13pm BST

Reuters is reporting that China has dispatched a team to North Korea that includes medical experts to advise on the North Korean leader, Kim Jong Un. The news agency cites three people familiar with the situation.

The trip by the Chinese doctors and officials comes amid conflicting reports about the health of the North Korean leader. There was no indication of what, if anything, it signalled in terms of Kim's health.

10.49pm BST

Downing Street has issued a second response to the Guardian's report that Boris Johnson's top political adviser, Dominic Cummings, is on the secret scientific group advising the government on the pandemic.

It is not true that Mr Cummings or Dr Warner are 'on' or members of Sage. Mr Cummings and Dr Warner have attended some Sage meetings and listen to some meetings now they are all virtual.

They do this in order to understand better the scientific debates concerning this emergency and also to understand better the limits of how science and data can help government decisions.

Related: Revealed: Dominic Cummings on secret scientific advisory group for Covid-19