Approximately 40 police officers from Wellington and Canterbury have been called in to assist with the emergency response to the Nelson scrub fires.
Acting Tasman district commander Inspector Zane Hooper said the additional staff arrived in the area on Wednesday.
"Police have been supporting the emergency response to the fires since Tuesday afternoon, assisting with cordons and evacuations," he said.
"Civil Defence continue to lead the overall response to this emergency and are providing regular updates".
The additional officers will assist with cordons and mobile patrols to ensure the safety and wellbeing of the wider community, Hooper said.