Thousands of people flocked to the village of Tlacote in central Mexico in 1991. They hoped to be cured by 'magical' water after rumours spread about its healing powers.Maria Elena Navas spoke to Edmundo Gonzalez Llaca who was an official in the local environment ministry in 1991 and who was sent to Tlacote to check out what all the fuss was about.

This programme is a rebroadcast.

Photo: Hands under a stream of water (Getty Images)