Residents Hastings' Kiwi Street have also now been evacuated due to the gas leak. Photo / Duncan Brown
Eight fire crews were on site and 30 people were evacuated, including pensioners from flats.
There had been a "large gas cloud" in the area, a Fire Service shift manager said.
Hawke's Bay District Health Board communications manager Anna Kirk said the hospital did not need to be evacuated, but Orchard Rd traffic headed for the hospital was being directed to other entrances.
Powerco operations manager (gas) Don Elers said the gas main supplied a significant number of industrial customers who would be affected while repairs were made.