Fireworks are believed to have caused a brush fire in Brookfield Friday night. Firefighters responded to Gurski Farm open space behind the High School shortly before 7:30pm. A brush truck and all-terrain vehicle responded to the woods. The fire covered an area of about 1.5 acres. It took little more than an hour to extinguish the fire. No injuries were reported. Brookfield Police say two females and a male were seen fleeing the area. The forest fire danger level on Friday was high and during high danger days, burn permits are not valid and there's no burning allowed. Brookfield Firefighters also warned that many fireworks in Connecticut are illegal.