The East of England Ambulance Trust has failed part of their latest Care Quality Commission inspection.
Now MPs say the trust now have a week to come up with an action plan to improve ambulance response times.
Suffolk Coastal MP Therese Coffey says the Chair of the Trust Maria Ball must consider her position.
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Increasing cloud and rain overnight. Blustery and cold tomorrow.
Events are taking place in Cambridge, Norwich, Colchester, Southend and Lowestoft today, to mark Holocaust Memorial Day.
Cloud will increase through the day with rain arriving by dawn.