Dozens of fire departments were called Tuesday to a large fire in a marshland on Route 22 in Long Grove that burned around 16 acres of land, fire officials said.
The Long Grove Fire Department responded around 12:50 p.m. Tuesday to the area of Route 22 and Salem Lake Drive for a report of a brush fire.
Firefighters from Long Grove, Buffalo Grove, Palatine, Prospect Heights, Lincolnshire-Riverwoods, Arlington Heights, Countryside and Lake Zurich were initially called to the scene.
Long Grove Fire Department Battalion Chief John Jaworski said firefighters had a difficult time accessing the fire due to its location.
The Mutual Aid Box Alarm System (MABAS) was activated to the first level for additional manpower and equipment to the scene.
The MABAS activation brought firefighters from approximately two dozen additional fire departments to the scene.
Jaworski said the fire took approximately three or four hours to extinguish. Crews were at the scene for around five hours in total.
The fire was approximately 16 acres and officials believe it was started by someone doing an unauthorized conservatory burn, Jaworski said.
No injuries were reported and the fire remains under investigation.