Record demand for ambulances has led St John to urge the public to only call 111 in genuine medical emergencies, TVNZ reports. During the week of July 5th, the service received 1,300 more 111 calls (an 11% increase) and 700 more ambulance responses (a 7% increase) than expected for this time of year. St John Ambulance operations deputy chief executive Dan Ohs says the increase in demand is impacting 111 communications centres.