Soon after, he saw smoke spreading out from the ICU bed.
The sudden and awful incident forced him to evacuate the ICU and shift his ailing brother Abdullah Al Mahmud, 48, a critical Covid-19 patient, like attendants of 13 other ICU patients there.
Three of those ICU patients, including Bulbul s brother, died after they were relocated.
Two other dead were identified as Engineer Kazi Golam Mostafa, 66, of Chandpur, and Kishore Chandra Roy, 70, of Tangail.
Some of the 14 critical patients were taken to a nearby coronary care unit (CCU) on the same floor of the 10-storey building whereas some were shifted to other wards or hospitals.