OJT in Zaječar launched an investigation into the illegal mining of sand and gravel on Crni Timok following Polekol’s report
On the upper reaches of the Crni Timok, in the village of Mali Izvor in the municipality of Boljevac, in the immediate vicinity of the "Ponorske ćuprije" bridge, large amounts of sand and gravel were illegally mined during the winter, which led to the destruction of a part of the river bed and shore, damaged the habitat of protected species, and altered the course of the river, which caused catastrophic ecological consequences.