**Six pupils have been stabbed to death at a primary school in China’s southern province of Fujian, local media say.**At least six other pupils are reported to have been injured in the knife attack at the Nanping primary school in the city of Fuzhou.
A mentally ill man has been arrested in connection with the attack, the Xinhua news agency reports.
School attacks - not uncommon in China - are often blamed on personal grudges or people with psychiatric troubles.