Samsung will investigate claims of child labour after a third-party audit of 250 Chinese manufacturers.

The South Korean company says it will inspect companies which make its products after China Labor Watch, a U.S. based operation, found seven underaged children working in a factory which produced Samsung DVD players.

Yet the electronics firm says the company in question, HEG Electronics, had no under-aged workers after carrying out their own investigation at the facility.

Samsung has however "demanded that HEG immediately improve its working conditions" after the audit found inadequate management and potentially unsafe practices including improper safety measures and overtime beyond local regulations.

If the partner fails to meet Samsung's "zero-tolerance policy on child labor, the contract will be immediately severed" the company says.

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