A series of cyberattacks on Airbus in the past few months was conducted via the computer systems of its suppliers and security sources suspect a link to China, AFP news agency reported on Thursday.

China has repeatedly denied involvement in hacking and neither the foreign ministry nor China's official cyber regulator responded to requests for comment on the report.

An Airbus spokesman said the company is "aware of cyber events" and like any major high-tech industrial player it is a target for "malicious acts.