"We are working hard to catch up any delays", it said.
A passenger has set off a security screen at Brisbane Airport's global terminal, causing a backlog of commuters now scrambling to reach their flights.
The other domestic terminal, T3, is operated by Qantas and did not experience the same issue.
Officials are urging any passengers who planned to fly from Sydney airport today to call their airline and/or check their flight time and status online.
United Nations chief urges Syria parties to begin cease-fire
Turkey sent troops into the Afrin enclave on January 20 to drive out Syrian Kurdish fighters it considers to be terrorists. Military operations to beat back government attempts to advance into and capture Misraba were "ongoing", he added.
Virgin Australia said that "due to a technical issue" passengers were being processed at reduced capacity.
Sydney Airport took to Twitter at around 6AM on 9 March to tell passengers that it was experiencing technical issues at T1 and T2 causing interruptions to passenger processing and delays.
Virgin Australia flights were also recovering from significant delays, which included two cancellations.
A spokeswoman for the airport said security screens were closed for 30 minutes as a result of the breach this morning, leading to a backlog.
SpaceX's Falcon 9 rocket launched, carrying 6-ton satellite from Spain
Tuesday's launch was the first launch for SpaceX from Cape Canaveral since the record-breaking Falcon Heavy launch on February 6. Tonight, the company is tasked with sending up a hefty communications satellite for operator Hispasat, called Hispasat 30W-6.
Australian Federal Police officers are investigating the matter.
Meanwhile in Brisbane a passenger set off a security screen at the worldwide terminal, causing a backlog of commuters.
It affected systems including the airport's CCTV, meaning passengers could not be screened for about two hours.
Chip And Joanna Gaines' Baby No
" Fixer Upper " stars Chip and Joanna Gaines have recently announced the gender of their fifth child via a Twitter video. Chip and Joanna previously announced her pregnancy during their newest show, "Behind the Design", back in January.