Staff at Hawke's Bay Hospital were shocked to find vandals had sprayed graffiti over some of their cars as they worked a late shift on Saturday night.
A staff car was tagged parked on Canning Rd near the hospital and two others in the staff car park at about 9pm.
One of the staff members whose car was targeted did not want to be named but said she was "very frustrated by the senseless vandalism".
"People come to work here to care for people, it doesn't seem right they should finish their work doing just that to find their cars vandalised."
District Health Board Chief executive Kevin Snee called the graffiti "mindless".