A 9-year-old boy is being spoken to by police Youth Aid after two fires in quick succession in Bay of Islands businesses.
The first fire started in a clothing rack at The Warehouse in Waipapa about 1.45pm on Tuesday.
Sergeant Peter Masters, of Paihia police, said damage was kept to a minimum by a customer's quick response and the store's good fire procedures. The store was evacuated and no one was hurt.
The Kerikeri Fire Brigade was called out but the fire was out before they arrived. The store was heavily smoke-logged. Another customer was able to provide police with part of a car registration number.
Kerikeri firefighters were on their way back to the station when, just 45 minutes after the first call, they were called out again - this time to a fire at the Palm Tree Cafe on the corner of State Highway 10 and Puketona Rd.