Serbia floods volunteer: We have to help our country
18 May 2014 Last updated at 18:09 BST
Emergency workers in Serbia are preparing for a "flood wave" on one of the country's main rivers.
Water levels on the River Sava are expected to peak later, threatening the country's biggest power plant.
It comes after the worst floods in the Balkans for decades left more than 35 dead and forced tens of thousands of people to flee their homes.
The BBC's Guy Delauney met volunteers just downstream from the stricken power plant in Belgrade.