A second GP surgery branch in Brighton has been shut following the outbreak of coronavirus in the East Sussex city.

The County Oak Medical Centre on Monday closed "because of an urgent operational health and safety reason", following reports a member of staff there was one of those infected.

On Tuesday morning it emerged that a second branch of the surgery - located less than two miles away - has also been closed.

A sign fixed to the door of the Deneway branch says: "The surgery is closed due to organisational health and safety reasons.

Meanwhile, officials are working to trace patients of two other healthcare workers who are among eight people in the UK to be diagnosed with coronavirus.

The pair, who were working in general practice in Brighton, are believed to have been in contact with around a dozen patients.

They were two of four new cases announced on Monday, all of whom contracted the virus in France and are now being treated at specialist infection centres at St Thomas' and the Royal Free hospitals in London.

Speaking about the latest cases, World Health Organisation director general Tedros Adhanom Ghebreyesus said they were "concerning instances of onward transmission from people with no travel history to China".

He warned such spread "could be the spark that becomes a bigger fire", and warned countries to work to contain the virus "to prevent a bigger fire".

In a statement on Monday, Public Health England medical director Yvonne Doyle said: "We are now working urgently to identify all patients and other healthcare workers who may have come into close contact, and at this stage we believe this to be a relatively small number."

The Guardian reported that the four people are three men, one of whom is a doctor, and one woman.