Wildlife rescue volunteers fear contaminated flood waters could be linked to kangaroo deaths

Wildlife rescuers say about 20 kangaroos from a mob of 100 trapped by flood waters on an island near Moama, NSW died despite being an apparently healthy weight. Photograph: News Ltd/AP

Wildlife rescue volunteers working along the Murray River have raised concerns that kangaroos could be dying after drinking contaminated flood water.

The alarm was raised after one-fifth of a population of kangaroos that have been trapped for three weeks on an island near Moama, on the New South Wales side of the border, died despite being an apparently healthy weight.