Hundreds of fish found dead in River Oder

Hundreds of fish have died in a roughly four-kilometre stretch of the River Oder near the Czech-Polish border, the Czech News Agency reports. The exact cause is still unknown but from a preliminary assessment of the situation, the most likely cause was a lack of oxygen in the river, probably caused by the three-week-long heatwave that Czechia recently experienced.

Samples were collected on Wednesday and the laboratory results will be known in a few days. It is estimated that around two percent of the total fish population in the river has been lost. The Czech Environmental Inspectorate, the state enterprise Povodí Odry, and the police are looking into the case.