Runoff pollution from Cyclone Debbie flooding sweeps into Great Barrier Reef

Damage comes after many coral reefs in Whitsundays were pummelled and broken by storm

Scientists have raised concerns about another sting in the tail from Cyclone Debbie, with fresh runoff pollution from torrential rains sweeping into Great Barrier Reef waters where many corals lie smashed.

The cyclone dumped much of its deluge on a stretch of the north Queensland coast known as an "erosion hotspot" that generates almost a third of all sediment flowing into the reef.