Soldiers, police and villagers battled to protect power plants in Serbia from rising flood waters on Sunday, as the death toll from the Balkan region's worst rainfall in more than a century, reached 37.
Twelve bodies were recovered from the worst-hit Serbian town of Obrenovac, 30 km (18 miles) southwest of the capital, Belgrade, but the number was likely to rise as waters receded.
"The situation is catastrophic," Prime Minister Aleksandar Vucic told reporters.
Hundreds of soldiers and residents scrambled to raise sandbag barriers around the perimeter of the Kostolac power plant east of Belgrade, where a Reuters cameraman said waters from the swollen River Mlava, a tributary to the much larger River Danube, had come to within a kilometer.
Workers at the plant joined the effort, digging up a road in a bid to divert waters that threatened to flood nearby coal mines. The Kostolac plant supplies 20 percent of Serbia's electricity needs.
Russian cargo planes carrying boats, generators and food joined rescue teams from around Europe and thousands of local volunteers in evacuating people and building flood defenses after the River Sava, swollen by days of torrential rain, burst its banks.
Rains eased and flood waters receded on Sunday in some of the worst-hit areas of Serbia and Bosnia, but the Sava was forecast to rise further. Thousands of people have since, been displaced.
Children shoes donated to evacuated people from the Serbian town of Obrenovac are seen in a shelter hall in Belgrade.
People sit in a boat after being evacuated from their flooded houses in the town of Obrenovac, southwest of Belgrade.
Serbian army soldiers evacuate people in an amphibious vehicle.
A woman cries after being evacuated from her flooded house.
An aerial view of the flooded city of Brcko.
Evacuees from the Serbian town of Obrenovac are seen lying on beds in a shelter hall.