The floods in Bohuslän came after 90 millimetres of rain fell on Friday night, which led to local rivers rising by 150 centimetres, and roads, basements and cellars being overrun by water.
Emergency services have since been trying to pump the water back into the rivers from residents homes.
"We had floods here a few years ago, but nothing like this. Yesterday it looked really bad here. Really", says Rolf Olausson, head of the rescue services in Strömstad, close to the Norwegian border.