PRAGUE — At least three people have died and hundreds more injured after a rare tornado tore through a region in the southeastern Czech Republic. The tornado was formed late on Thursday during a series of strong thunderstorms that hit the entire country. Seven towns and villages have been badly damaged, with entire buildings turned into ruins and cars overturned. Over 120,000 households were without electricity. Some 360 extra police officers were sent to the area together with the military. The rescuers from many parts of the country who came to help were joined by their counterparts from nearby Austria and Slovakia. They were using drones and helicopters to search the rubble. One person died of injuries in the hospital in the town of Hodonin. The regional rescue service said more people likely died. “It’s a huge tragedy,” Prime Minister Andrej Babis said. Babis was in Brussels to attend an EU summit and was planning to visit the damage-hit region on Friday. Marek Babisz, deputy mayor of Hrusky, told Czech public radio half of his town was almost completely destroyed. “The church is without the tower, the elementary school has no roof and insulation anymore, only walls remained from what were houses. There’re injured, it’s really terrible.”