Bojana Nedeljkovic has relatives in the Bosnian town of Doboj; ''There is concern about food and water supplies being delivered to those who need it''
States of emergency have been declared in parts of Bosnia and Serbia after the heaviest rain and worst floods since records began 120 years ago.
Overflowing rivers have burst into towns and villages, cutting off whole communities, while landslides have buried houses.
At least three people have drowned.
Army helicopters have been sent to evacuate thousands of stranded residents but reports say bad weather is hampering the rescue efforts.
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