JACKSONVILLE, Fla. -

Firefighters worked  to put out two brush fires on Black Hammock Island on the Northside on Friday afternoon.

The Florida Forest Service and Jacksonville Fire-Rescue were called to the fires in the 2700 block of Sawpit Road at about 4 p.m.

Residents in the area could see smoke from their homes, but officials said the fire was not threatening any structures.

Forestry officials said one fire was about a tenth of an acre and was contained. The other was 10 acres. 

Senior Forest Ranger with the Florida Forest Service told Channel 4 that it is the season for brush fires, but that Friday's fire could have been prevented.  

"We had a nearby land owner that decided to do some burning with some piles and it escaped from him and that's what started this fire," said Senior Forest Ranger, Terrell Drew. 

One forestry tractor was stuck in the mud but the crew was not in any danger. It took fire crews some time to get the fire completely contained.  At one point Friday night some of the fire rekindled and crews had to re-establish the containment lines of the fire.  Fire crews left the area just before 9 p.m. Friday.