Volunteers in the Polish town of Nysa made flood walls to stem swollen rivers on Tuesday after heavy rain and flooding round central Europe that has killed at least 18 people.
Rivers were still spilling banks in the Czech Republic, while the River Danube was rising in Slovakia and Hungary, and flooding has also affected Austria.
The Czech-Polish border areas are among the worst-hit since the weekend, as gushing, debris-filled rivers devastated some towns, collapsing or damaging bridges and destroying houses.
Poland has declared a state of disaster in the area and set aside 1 billion zlotys (AED 954 million) for flood victims.
Overnight, volunteers helped rescue workers heave sandbags to build up the broken embankment around Nysa, a town of 40,000 in southern Poland.
Some residents were looking to check homes after evacuations were called on Monday.
National fire chief Mariusz Feltynowski said on Tuesday in meetings with Prime Minister Donald Tusk in the city of Wroclaw that the Nysa embankment was sealed, with military helicopters joining the operation to drop sandbags.
South Korea and the United States will cut short annual joint military drills to five days from 11 and scale back some field training, the allies said on Wednesday, after President Donald Trump ordered a substantial reduction in US participation.
At least 100 people were killed when a low-tech artisanal gold mine collapsed in the Central African Republic on Tuesday, a senior official at a local mining association said.
An Israeli airstrike killed nine Palestinians at a police station in Gaza on Wednesday, medics said, two days after US envoy Jared Kushner ended a trip to the region that failed to push forward Donald Trump's plan to end the war in the enclave.
Thai schools conducted active shooter drills on Wednesday, as authorities moved to strengthen security measures two weeks after a 14-year-old opened fire at a school and killed at least eight people.