The Australian Federal Police are looking into an act of alleged sabotage involving a Qantas plane.
The plane was undergoing maintenance in Brisbane when the alleged incident occurred last week, before Qantas grounded its entire fleet on Saturday during an industrial dispute.
"The AFP is aware of an alleged incident of interference with a Qantas aircraft which was undergoing maintenance at Brisbane Airport," the AFP said in a statement.
"This matter has been referredto the AFP for further inquiries."
A decision is expected soon on whether the AFP, which has jurisdiction at Australian airports, will formally launch an investigation.