Chancellor George Osborne has said the Newark by-election win was a "strong win for the Conservatives" and it was "disastrous" for the Labour Party.
Asked what he thought of the Ukip performance after the anti-EU party came second, he said:
"The Ukip vote was down on where it was a few weeks ago. We have an argument we can take to the country now about the change Britain needs."
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The extension of the national coronavirus lockdown dominates Thursday’s front pages.
Her death was confirmed by lawyer Joseph Murtha.
Foreign Secretary Dominic Raab, who is deputising for the Prime Minister, will chair a Cobra emergency committee on Thursday.