“We just ask that the public avoid the area.”
NZTA Waka Kotahi said the shop fire is on Lucknow St and has closed the stretch of road either side.
“Vehicles are being detoured via Lucknow St and Locke St. The detour is suitable for all vehicles.”
Footage from social media shows thick smoke pouring out the top of a liquor store.
Munn said crews from Nūhaka and Wairoa are in attendance, with further teams from Mahia, Tuai, and Gisborne responding to the scene.
A specialist aerial ladder is on its way from Napier, she said.
No injuries have been reported.