Millions of dead fish wash up amid heat wave in Australia

CANBERRA, Australia: Millions of fish have washed up dead in southeastern Australia in what authorities and scientists say is caused by floods and hot weather.
The Department of Primary Industries in New South Wales state said the fish deaths coincided with a heat wave that put stress on a system that has experienced extreme conditions from wide-scale flooding.
The deaths were likely caused by low oxygen levels as floods recede, a situation made worse by fish needing more oxygen because of the warmer weather, the department said.