A new report from the conservation group Save The Elephants finds that the prices paid for ivory in China are soaring because of increased demand by newly wealthy buyers.

The report released Tuesday said retail prices of ivory have increased by 13 times between 2002 and 2014 in Beijing. The wholesale price of raw tusks has tripled since 2010, said the report.

Animal conservationists say higher demand for ivory is fueling the elephant killings by poachers across Africa. Save The Elephants said earlier this year that 100,000 elephants were killed in Africa between 2010 and 2012.

Some ivory sales are legal, but the report said that nearly four out of five ivory shops in Beijing are illegal.

China's government has said it is working to combat the illegal ivory trade.