Ferry services on the key Paturia-Daulatdia route were suspended on early Wednesday due to thick fog.
The authorities suspended the services at 5am due to poor visibility, said Assistant General Manager (AGM) Zillur Rahman of Bangladesh Inland Water Transport Authority.
Out of the 15 ferries operating on the route, nine were stuck mid river, one at Paturia and five others at Daulatdia.
Several hundred vehicles remained stranded on both sides.
Poor visibility during winter regularly forces suspension of ferry services on the key route.unb