An ambulance trust is holding an “urgent” meeting to discuss concerns over patient safety.

The Quality summit is taking place at NHS England’s regional office in Fulbourn to establish the “known risks to quality and patient safety” at the East of England Ambulance Service.

Earlier this month Dr Mark Patten, medical director at the trust, resigned just days after MP Clive Lewis told the Commons that the ambulance service failed to move into its highest state of emergency over 12 days in December.

The decision was not taken until December 31 and he says the delays cost 20 people their lives.

A spokesperson for the trust said: “We welcome this opportunity with NHS England, NHS Improvement and stakeholder organisations to establish the known risks to quality and patient safety at the ambulance service, and work together to ensure our top priority is excellent patient care and outcomes for people in the East of England.”