The structure fire in Bismarck estimated as a $150,000 loss reignited this afternoon.
A passerby noticed smoke coming out of a vent on the roof a building on 3521 Franklin Ave. and called 911.
Firefighters were able to control and extinguish the fire within half an hour. The battalion chief says the building has many open doorways and the wind caused the fire to reignite.
"Some insulation probably that was wet the other night from the firefighting probably had dried out now after a couple days with the winds. Apparently an ember got a small fire going up in the roof area again," said Bismarck Fire Battalion Chief Kurt Leben.
Leben says the owner of the building has been notified and says he will remove the insulation as a precaution.
The fire is out, but the crews will keeping an eye on the building.
No one was in the building at the time and no one was hurt.