An oil spill in the Mexican state of Tabasco has left roughly 100,000 people without drinking water on Wednesday.

The spill, which occurred on Sunday, was reportedly the result of a Pemex pipeline being breached by oil thieves.

It polluted two rivers, forcing the shutdown of four water treatment plants, which initially left half a million people without drinking water.

Mayor of the state capital of Villahermosa, Humberto de los Santos Betruy, said the spill caused “heavy ecological damage.”

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