British aerospace and defence firm Rolls Royce is co-operating with fraud investigators over allegations of bribery and corruption involving intermediaries in China and Indonesia, the company says.

Rolls Royce said it had passed on the results of an internal investigation to the Serious Fraud Office (SFO), an independent government body that investigates and prosecutes serious or complex fraud and corruption.

The company, which is the world’s second-largest maker of aircraft engines behind US group General Electric, said the investigation followed a request for information from the SFO about allegations of malpractice in Indonesia and China.