The Waiouru Army Fire Force is battling a large scrub fire on the military base.
Fire and Emergency was alerted to the fire around 3pm on Sunday, with numerous crews still on site tackling the blaze on Monday.
![The cause of the fire is yet to be determined. Photo / Bevan Conley](https://www.nzherald.co.nz/resizer/v2/ZAR5OJFGEOEEM23OQWQXONYTAE.jpg?auth=b35d4d9a06371adcef287fe283e0bcd2266ef156bd7b2025f887bff373d87c38&width=16&height=11&quality=70&smart=true)
A Fire and Emergency spokesman said the fire is around 465ha and is likely to escalate through the day.
There was no information regarding how the fire started.