A canal in Argentina mysteriously turned bright red on Thursday, alarming residents who were woken up by its strong odor.

A stream south of the Argentine capital turned a freakish vermilion this week, prompting concerns about pollution. Officials ...

A waterway winding through a populous area on the outskirts of Buenos Aires has turned bright red, sparking fears of ...

A stream winding through a populous area on the outskirts of Buenos Aires has turned crimson red in recent hours that has ...

Images of the waterway showed its eerie discoloration on Thursday. 'It looked like a river of blood,' one resident said.