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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Mostly dry with clear skies tonight. A chilly start tomorrow with sunshine developing.
Mostly dry with bright or sunny spells