Several dozen people were injured on Monday when a tornado ripped through parts of eastern Japan, tearing off roofs and uprooting buildings.
The footage aired by public broadcaster NHK showed a number of destroyed houses, schools with shattered windows and a warehouse that had been lifted from its foundations and hurled into other buildings in Koshigaya city, north of Tokyo.
At least 27 people were injured in the city alone, local police said, without elaborating on the severity of the injuries.
NHK said that few people were taken to hospital, all with minor injuries.
"We are preparing evacuation shelters, while also readying emergency supplies," said an official of the fire department in Koshigaya.
The electricity supply was cut for some 30,000 households in Saitama prefecture, probably after lightning hit the area, according to Tokyo Electric Power which provides power in the