The death toll from a series of catastrophic floods in the southern Brazilian state of Rio Grande do Sul has risen to at least 83, the state’s civil defense unit said Monday.

Authorities are also investigating another four deaths to determine if they were related to the storms.

A further 276 people are reportedly injured and at least 111 people are missing, while at least 121,000 people have been displaced, according to the Civil Defense of Rio Grande do Sul.

The disaster has affected more than 850,000 people in 345 municipalities, destroying homes, roads and bridges.

Rio Grande do Sul has been increasingly hit by extreme weather events in recent years, and at least 54 people died in the state in September after it endured a sub-tropical cyclone.

The climate crisis, caused primarily by humans burning fossil fuels, is supercharging extreme weather around the world, making many events more intense and more frequent.

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📸: Carlos Fabal/AFP/Getty Images; Renan Mattos/Reuters; Amanda Perobelli/Reuters; Diego Vara/Reuters; Gustavo Ghisleni/AFP/Getty Images