Rural fire crews have remained at the scene of a large grass fire in Seddon in Marlborough overnight.
Yesterday the blaze swept across 30 to 40 hectares of grassland north of Seddon at Dashwood Pass, on the eastern side of State Highway 1.
Southern fire communications shift manager Mau Barbara said rural fire crews remained at the scene overnight, with more firefighters due to arrive at the scene this morning.
"They're just dampening down hotspots.
"With the weather being dry as it is and the wind popping up these hotspots do pop up now and then."