A teenager in northwest China's Xinjiang Uygur Autonomous Region died of A/H1N1 influenza Tuesday, after at least eight Chinese nationals had fallen victims to the virus on the mainland.

The 14-year-old school student surnamed Guo, of Fuyun County in Altay Prefecture, was treated at local clinics for a fever on Oct. 30. He was transferred to the Fuyun People's Hospital Tuesday, but later died, said the regional health department.

Tests on Wednesday showed Guo died of A/H1N1, viral pneumonia and acute respiratory distress syndrome, the department said.

Eight deaths from A/H1N1 had earlier been reported from Beijing, Tibet, Qinghai, Xinjiang, Heilongjiang, Guangxi, Hunan and Zhejiang.

Separately, a 32-year-old Russian man died of the epidemic in Beijing Monday afternoon. He arrived in the Chinese capital from Russia on Oct. 28 by air and went to hospital on Sunday with severe breathing difficulties and other symptoms.