Several firefighting units have been dispatched to the factory in the Bayezid Textile area
The body of the woman, around 50, was found on Saturday near the prison at Dhaka's Keraniganj Upazila morning, police said.
South Keraniganj police's Sub-Inspector Md Mozammel said they believe that the woman died of a road accident.
Quoting locals, he said that locals spotted the body and informed the police.
The body has been sent to Salimullah Medical College Hospital in Dhaka.