Sebastien Loeb's Rally Australia victory could be in doubt, AUTOSPORT has learned.
An FIA spokesperson has confirmed that the world champion's Citroen C4 is being investigated for a possible technical infringement.
The stewards are currently meeting to discuss the matter, with sources indicating that a decision will be made "within the hour".
Loeb ended a four-rally losing streak by beating his title rival Mikko Hirvonen to victory in this weekend's event.
The result also narrowed Hirvonen's lead over Loeb in the championship to just one point with two rounds to go.