Thousands crammed into boats and army trucks as they fled their homes in Serbia and Bosnia on Sunday after record rainfall turned the Sava river into a deadly torrent and caused the worst floods in more than a century.
Officials say the disaster has killed at least 44 people so far.
Some towns have been completely cut off and rescue teams feared the worst as they were finally able to move in.
Some 10,000 people have been evacuated so far from the worst affected areas of northern Bosnia, but in some places like the town of Samac, hundreds of stranded people were still waiting to be rescued.
