A Pentagon computer network was taken down for more than a week after the Chinese military hacked into it in June, the Financial Times reported Monday.

A computer system serving the office of U.S. Defense Secretary Robert Gates is believed to be the victim of the cyber attack. While the Pentagon would not say who may have orchestrated the plot, a senior official told the Financial Times that the People’s Liberation Army may have been the culprit.

Click here to read the Financial Times report.

It is not clear how much data was downloaded from the system, but a person with knowledge of the attack told the Financial Times that most of the information was probably “unclassified.”

President George W. Bush is expected to meet with Chinese president Hu Jintao this week before the Apec summit in Australia.