A fire burning in a swamp west of the Twin Cities burned more than 50 acres of land and closed Highway 12 for four hours overnight.
Fire crews were scrambled to the scene northwest of Maple Plain at Hwy. 12 and County Road 90 at 8:30 p.m., with the West Hennepin Public Safety saying they found a fire measuring around 100 feet by 100 feet.
It had actually started in the middle of the swamp, an area comprising cattails and water, and burned throughout the night.
At its height, the fire had grown to cover 50 acres of the 160-acre swamp east of Independence town hall.
Fire crews monitored the blaze and made sure it didn't reach any buildings, but due to the location of the fire it proved difficult to put out.
The Minnesota Department of Natural Resources has its water deployment helicopter on standby in case crews need help extinguishing the blaze on Monday.
KSTP reports that a wet spring has helped keep the fire under control.
Highway 12 was reopened in time for the morning commute, though there are signs warning of a "controlled burn ahead.
Authorities are now investigating what caused the fire.