A woman and her two children went missing after floodwaters swept them away in Sunamganj's Shalla upazila.
The incident took place around 7:30pm on Monday under a bridge near Shalla Government College.
According to witnesses, the woman alongwith her four-year-old son and seven-year-old daughter were swept away by the strong current when they were trying to cross the Shalla Government Degree College bridge and went missing.
Rescue work is underway, said Shalla Police Station OC Md Aminul Islam.
The identities of the missing could not be known.