Seized vehicles are deteriorating in police dumping yards in Dhaka and other parts of Bangladesh as cases remain unresolved for months or years.

Police say vehicles seized in criminal and traffic cases generally cannot be returned to their owners before the relevant court proceedings are concluded.

Exposure to sun and rain can damage vehicle bodies, engines, tyres and other components while the vehicles remain outdoors.

The account says a shortage of space has led to hundreds of vehicles being kept in temporary dumping yards linked to Dhaka's 50 police stations.

Four temporary dumping stations are operating at Shahbagh, Basila, Postogola and Uttara Police Lines.

At the Shahbagh site, muddy conditions, a disorderly layout and the absence of a security wall were identified as storage concerns.

Police say staffing shortages and inadequate security have left sites vulnerable to the theft of batteries, tyres and engine parts.

Police say they have applied to build four permanent modern dumping stations, which they expect would ease storage pressure.

The account does not provide a total number of vehicles, an estimated value of the damaged property, a timetable for the proposed facilities, or details on the status of the cases.