Today, China's Foreign Ministry said that it did not accept accusations from Google the Chinese Government hacked Gmail making it difficult for users to access the service in the country.
Google released a statement yesterday saying disruptions to the Gmail service were not a technical issue but a "Government blockage carefully designed to look like the problem is with Gmail."
In a statement this morning, the ministry spokeswoman Jiang Yu said "This is an unacceptable accusation."
This is not the first time the relationship between China and Google has come under strain. In March 2010, Google threatened to stop its operations in China after it accused the country of large hack attacks - later known as Aurora - on Gmail accounts of human rights activists.
In November a Wikileaks cable highlighted communications between a Chinese contact and the American Embassy in Beijing admitting the hack was down to Politburo.