The fire, which started in agricultural land in Bursa's Büyükorhan district and spread to the forest area, is being intervened by air and land.
Flames broke out in the agricultural land near Osmanlar District of the district for an unknown reason.
The fire then spread to the forest area and moved towards Adaören District of Balıkesir's Dursunbey district under the influence of the wind.
Bursa and Balıkesir Regional Directorate of Forestry teams and fire brigades were dispatched to the region to intervene in the fire.
Teams are continuing to intervene in the fire from air and land.