Overcrowding means hospital is assigning doctors to ambulances 'because it’s a space to treat a patient'

Doctors are treating patients in ambulances out Mayo University Hospital because there 'is physically no space in the emergency department'.
Patients are having to be treated for hours in ambulances outside Mayo University Hospital because there is simply no space in the emergency department (ED).
Nurses are balloting for strike action at a hospital which is dangerously running at 113% occupancy when safe levels are 85%.