Al Jazeera has found evidence that some Gaddafi spies were operating among senior circles within the National Transitional Council and its army of rebels.
The documents in Libya's intelligence headquarters show the spies intercepted messages between the opposition and foreign governments.
Al Jazeera has decided not to publish the names of those mentioned in the document for the safety of those involved. Jamal Elshayyal has our exclusive report.
Source: Al Jazeera