Google has been ordered to remove the suggestion function from its Chinese website.

According to official Xinhua news agency, the suggest function, which offers keywords as users type, was shown on state TV suggesting 'illicit mother-son relations' as a search phrase in Chinese when a user typed in the word 'son'.

This prompted China to order Google to remove the service. The function stopped working on google.cn, although it still worked in the country on google.com. However, Google has since been order to remove that ability as well.

A Google spokeswoman confirmed the company had met with Chinese officials to discuss problems with its China search service.

"We are undertaking a thorough review of our service and taking all necessary steps to fix any problems with our results," the spokeswoman said.

"This has been a substantial engineering effort, and we believe we have addressed the large majority of the problem results."

Google will continue to meet with Chinese authorities to address their concerns, the spokeswoman added.

Earlier this week, the government-backed internet watchdog China Internet Illegal Information Reporting Center ordered Google to step-up its pornographic filtering and remove all links to "vulgar" material