SNP MP Margaret Ferrier has said she is “very sorry” for travelling to and from London to attend Parliament after experiencing Covid-19 symptoms.

Labour leader Sir Keir Starmer said Mr Corbyn should have obeyed the rules, but stopped short of calling for his predecessor to be fined.

Tighter restrictions on social mixing will be imposed in Liverpool, Warrington, Hartlepool and Middlesbrough, Health Secretary Matt Hancock announced.