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.
Rescuers in Nepal used helicopters on Thursday to scour for hundreds still missing after a wall of mud and rock collapsed into a river on the Himalayan border with China's Tibet, sending catastrophic floods through towns and valleys, killing 165.
The Brazilian government said on Wednesday it has sued chat platform Discord, seeking 500 million reais ($97 million) through a civil collective moral damages lawsuit as it accuses the firm of failing to comply with laws protecting children and teens.
Twelve people have been killed in wildfires that swept through several Algerian provinces, Interior Minister Said Sayoud said late on Wednesday, amid a severe heatwave gripping North Africa.
A US Air Force judge on Wednesday has ordered Khalid Sheikh Mohammed, the accused organiser of the September 11, 2001, attacks on the United States, and three co-defendants to go on trial before a military tribunal in June 2028.
A huge wall of mud and rock collapsed into a river on the Himalayan border of Nepal and China's Tibet on Wednesday, triggering catastrophic flooding on the Nepali side that killed scores of people and left hundreds of tourists missing.