(CNN) -- São Paulo (CNN Brazil) — A deadly tornado tore through a state in southern Brazil, killing six people and injuring at least 750, local authorities said.

Paraná Governor Ratinho Júnior described the tornado as an “unprecedented catastrophe in the history” of the state.

Winds may have topped 250 km/h (155 mph) in the ravaged town of Rio Bonito do Iguaçu, according to Simepar, the state’s meteorological service. The tornado affected approximately 90% of the residences and commercial buildings in the municipality, according to the state government.

“It’s unlikely that any house, or even a commercial building, will remain standing. We saw silos collapsing, gas stations,” the governor said.

Aerial footage showed the destruction wrought by the twister, with roofs ripped off b

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