RIO DE JANEIRO (AP) — A small aircraft has crashed in Brazil, killing four people including the distinguished Chinese architect and urbanist Yu Kongjian, Brazil’s vice president said on Wednesday.

The crash occurred on Tuesday evening as the plane was attempting to land at a large farm approximately 100 kilometers (62 miles) from the municipality of Aquidauana in Brazil’s Mato Grosso do Sul state, firefighters said.

There was no immediate information on what caused the crash.

Yu conceived the idea of “sponge cities,” which aim to mitigate the impact of climate change by using “green infrastructure” to create storm-resilient cities.

He argued that by creating large spaces to hold water in city centers, such as parks and ponds, extreme rainfall can be absorbed, helping prevent floods. Th

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