NEW : Serbia : `` Many cities and villages ... `` We are trying to convince them to leave , but it 's very difficult . '' are completely under water '' the river is rising. , government says . It 's the worst flooding Serbia , part of the Balkans Peninsula , has seen in at least 120 years . The Red Cross says surfacing landmines could endanger rescuers and residents .
NEW : Serbia : `` Many cities and villages ... are completely under water '' the river is rising. , government says . It 's the worst flooding Serbia , part of the Balkans Peninsula , has seen in at least 120 years . The Red Cross says surfacing landmines could endanger rescuers and residents .