A passenger has set off a security screen at Brisbane Airport's international terminal, forcing travellers to be re-screened and delaying flights.
A spokeswoman for the airport said security screens were closed for 30 minutes as a result of the breach on Friday, leading to a backlog.
She said Australian Federal Police officers were investigating the matter, but an AFP spokesman said the agency was not involved.
Some passengers were re-screened and a number of international flights delayed, the airport said in a tweet.
The incident has been "resolved without incident", a spokesperson confirm to Yahoo7 and that they're "working hard to get operations back on track".
"We're asking passengers to confirm their travel time with airlines and thank them for their patience," the spokesperson said.
The incident follows a "technical issue" at Sydney Airport on Friday at its checkpoints.