After a slight decrease from severe levels, the mercury is hovering around 40 degrees Celsius in most regions
Five others were injured after the electric wire snapped and fell on a tin-roofed house in Rasulbag area of the Upazila early Wednesday, according to Shiddhirganj police.
The dead have been identified as Rubina Akter, 35, 'Sumaiya', 13, and 3-year-old 'Hasan', said Shiddirganj Police OC Kamrul Faruk.
The injured are currently being treated in a hospital.
Emergency crews have repaired the snapped power line, OC Kamrul said.