A man has been arrested after allegedly lighting 80 fires across the Northern Territory, threatening homes and destroying property and bushland.
NT Police and fire services suspect a number of blazes across the territory since May were deliberately lit, and on Thursday arrested a 37-year-old man at a home south of Darwin.
"Some of these fires were significant and did result in damage to property, but also ... lots of bushland," Deputy Chief Fire Officer Josh Fischer told reporters on Friday.