The Fire Service and Civil Defence has started extinguishing the fire that broke out in the Amurbunia area at Chandpai range of the Sundarbans East Zone last afternoon.
Along with the fire service, members of the Bangladesh Navy, Bangladesh Air Force and Bangladesh Coast Guard have joined the operation that began at 9am on Sunday.
A 10-member firefighting team, led by Lieutenant Commander Arafatul Arefin of the Navy's Mongla base, rushed to the spot early in the morning.
Mamun Ahmed, deputy director of Bagerhat Fire Service and Civil Defence, said five firefighting units are at the spot. Of these, three units of Mongla, Morelganj and Sharankhola have started working. The other two units are on standby.
Earlier, two units of Mongla and Morelganj fire services reached the spot on Saturday evening but they could not start their operation as the sun had set by the time they arrived.
Fire Service and Civil Defence Mongla Station Officer Mohammad Kaymuzzaman confirmed the matter.