Football pundit Stan Collymore told ITV News he has not heard from Twitter about his concerns over abuse:
The former footballer said: "Twitter seems to be living its own bubble at the moment. If someone passed me and called me some of the abuse, and some of the threats we've seen in the last 24 hours, they would be arrested. "
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Mostly dry and turning warmer this weekend
The plea for more volunteers comes as the number of coronavirus-related deaths in the UK rose by 684, bringing the total to 3,605.
The number of new cases in Spain and Italy look to be slowing, though the usual warnings apply to reading too much into one day's figures.