All lines are now open at St Neots after overnight repairs. There's disruption on First Capital Connect trains between Peterborough and King's Cross - buses will continue to supplement services between Peterborough and Biggleswade until 7am. Delays are also possible on East Coast trains.
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Remaining dry with warm sunny spells on Monday.
Douglas Carswell told ITV's Peston On Sunday he wanted to "support" the government as a "critical friend" but refused to rule out a return.
The Ukip leader confirmed he had "no prior warning" of Douglas Carswell's resignation from the party as he hit out at the "staunch Tory".