London: Covid19 "Major Incident"

The coronavirus infection rate in London has exceeded 1,000 per 100,000 people, based on the latest figures from Public Health England.

However, the Office for National Statistics recently estimated as many as one in 30 Londoners has coronavirus.

Mr Khan told BBC political reporter Karl Mercer that the figure is as high as one in 20 in some parts of London.

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A major incident is any emergency that requires the implementation of special arrangements by one or all of the emergency services, the NHS or the local authority.

It means the emergency services and hospitals cannot guarantee their normal level of response.