A class action legal case has been launched against a subsidiary of the mining firm Anglo-American over an abandoned lead mine in Zambia.
Lawyers representing a group of women and children say more than 100,000 people may have been poisoned by toxins from the site in Kabwe.
Millions of tonnes of waste remain at a dump, known locally as “Black Mountain”, more than 25 years after the mine was closed.
Anglo-American said no claim had yet been served against it, but insisted any legal action would be vigorously defended.