The Auckland District Health Board halted hiring of all new staff for 48 hours because of a financial blowout - a move some have tied to health funding not keeping up with demand.
Internal DHB emails obtained by the Herald yesterday stipulated "all recruitment activities are frozen" because of unfavourable "financials".
The DHB has a total staff of more than 10,000 people, and hired about 150 people a month.
On Tuesday, the general manager of operations, Ngaire Buchanan, imposed a recruitment freeze, initially for 48 hours.
Senior doctors' union executive director Ian Powell and Labour Party health spokeswoman Maryan Street, a former district health board employment relations chief, both declared the recruitment freeze an unprecedented move and said they were deeply concerned.