There are reports that children are involved in the mining of gold in eastern Cameroon. Children often mine alongside their families in artisanal mines, and reports indicate that their ages range from under age 10 to 17. Sometimes children mine gold by themselves for sale on the black market. Evidence of child labor has been found in Batouri and Kambele, near the border with the Central African Republic. Reports indicate that thousands of children in Kambele work in artisanal gold mining, while in nearby Batouri, roughly 90 percent of children participate in gold mining. Children mine in hazardous conditions, including standing in stagnant water, working underground, and using mercury to extract the gold dust. Many children leave school to work in gold mining, and a report indicates that over 75 percent of the students in one school stopped attending school to mine gold.