One spill gate of the Upper Kotmale Reservoir remains open due to continued rainfall in its catchment areas, reservoir engineers have announced.

The spill gate was opened following rainfall in the surrounding catchment areas and remains open as wet weather continues.

Engineers have warned that the remaining spill gates could open automatically if heavy rainfall persists in the catchment areas.

Residents living along both banks of the Kotmale Oya downstream of the reservoir dam have been urged to remain vigilant and exercise caution due to the potential increase in water levels.