She told Sky News's Sophy Ridge on Sunday: "We are seeing the ambulance handover delays at a scale we haven't seen before. "Our members have reported to us they can wait as little as half an hour. We've had some members wait five, six, seven, eight and even nine hours. "That doesn't take into account the huge number of patients that are waiting for an ambulance that can't get to them. She added: "We are very used to seeing ambulance services take some strain over the winter months due to the normal pressures we would see any particular year. "But this year particularly has seen incredible pressure because of the clinical presentation of the patients our members are seeing. They are sicker."