Ghana arrests Chinese and Indian illegal gold miners

The authorities say the illegal mining pollutes the rivers and destroys the environment.
Illegal miners use makeshift barges to dredge mud from river beds which is then sifted for gold.
The BBC's Sammy Darko in the capital, Accra, says illegal miners also mine in the forest leaving behind huge holes and cutting down trees.
The holes collect with water and chemicals like mercury used to sieve through the mud for gold drain into rivers.
http://www.bbc.co.uk/news/world-africa-24746490