Three young men are in hospital with life threatening injuries, after being stabbed at a party on the Bedfordshire Cambridgeshire border.
Four people were attacked during the incident at the village of Begwary, near St Neots, in the early hours of Sunday morning.
ITV Anglia spoke to Jo Hobbs from Bedfordshire Police.
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Ukip has responded to the resignation of its only MP, Douglas Carswell, by suggesting he quit before he was kicked out.
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ITV News Anglia's Political Correspondent Emma Hutchinson asks what next for UKIP after Douglas Carswell quits the party?