Rainstorms and landslides in Chile have contaminated a major river forcing the authorities to cut off drinking water to at least four million people in the capital, Santiago.
Officials said the water supply from the Maipo river would be cut to most of the city until the water flowed clear.
At least three people have been killed and 19 are missing as rivers overflowed and bridges were washed away.
Almost 400 people have been cut off in the Cajon del Maipo mountainous area.
“Emergency teams are working on the ground to connect with isolated persons and re-establish the water supply wherever possible,” Chilean President Michelle Bachelet wrote on Twitter [in Spanish].