"Lead poisoning linked with illegal gold mining has killed a further 400 children in northern Nigeria since November, the National Emergency Management Agency (NEMA) said on Monday.

The latest figures suggest the death toll from the crisis in the northern state of Zamfara is rising after the United Nations said lead poisoning in the region had killed at least 400 children between March and October last year."

Reuters had the story March 7, 2011. [2]