AUDIO: Cameroon's Lake Nyos: 25 years on

More than 1,700 people died when lethal gas escaped from Cameroon's Lake Nyos 25 years ago. The BBC's Randy Joe Sa'ah reports that the area is still contaminated but many people have returned to live there.

Source: http://www.bbc.co.uk/go/rss/int/news/-/news/world-africa-14618964

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