However, the amount of gas in the building’s atmosphere was within safe working limits.
“We were happy that no one was going to get hurt otherwise we wouldn’t have handed it over,” Dudley said.
After gas levels were deemed safe, fire crews handed the building back to the council which owns the building.
Community and customer experience general manager Marianne Cavanagh said the fire alarm had been set off by the gas fumes, which were the result of a blocked pipe.
She said the building had been thoroughly assessed and given the all-clear.
“Happily our systems worked as they should to ensure the safety of staff, patrons and the building itself,” Cavanagh said.
The Opera House, including its box office, has now reopened.
Finn Williams is a multimedia journalist for the Whanganui Chronicle. He joined the Chronicle in early 2022 and regularly covers stories about business, events and emergencies. He also enjoys writing opinion columns on whatever interests him.