Heavy rains in central Queensland, Australia, have stalled Rio Tinto’s mining operations in the region.

The firm declared force majeure for three of its mines – Clermont, Blair Athol and Hail Creek – which been affected by the weather, reports the BBC.

Since September, heavy rains have impacted coal output and transport, leading to a sharp decline of stockpiles in the region.

On Monday, Rio Tinto re-established access to the majority of operating pits and restarted rail lines.