Warrnambool City Council says a recent security breach at Avalon is "deeply concerning", but the organisation has not yet been included in a safety probe directed at regional airports.

Questions are raised over how a 17-year-old boy was able to evade security at Avalon Airport and board a flight with a loaded shotgun, in a breach one aviation security expert described as "unacceptable".

When the security crisis unfolded on Thursday afternoon, local police from Lara - nine kilometres away - were the ones that responded.

A teenager who allegedly boarded a Jetstar flight armed with a shotgun has triggered a review of security at airports around Australia.

Home Affairs Minister Tony Burke has initiated the audit to determine what security upgrades are necessary to prevent such incidents after a teenage alleged gunman tried to board a Jetstar flight.

A lack of police presence at the airport meant officers had to race nine kilometres to arrest a teenager who claimed to be carrying a bomb on board a Jetstar flight.

A teenager accused of attempting to hijack a Jetstar flight allegedly declared “I’ve got bombs in my bag” before he was tackled by passengers.

Regional airports across the country, including NSW, have been ordered to undertake rapid security assessments after a teenager allegedly tried to board a Jetstar flight near Melbourne while armed with a shotgun.

Barry Clark jumped into action and detained a teenager who allegedly attempted to board a plane with a gun on Thursday.

No South Australian regional airports are included in a major national security review of aviation sparked by a terror scare at Victoria’s Avalon Airport – despite some passengers boarding local planes without any screening.

A 17-year-old boy has been charged after he allegedly entered a commercial flight in Australia with a gun, before being tackled and disarmed by passengers and crew members. The teen allegedly ...

Home Affairs Minister Tony Burke has directed large regional airports to conduct an urgent risk assessment following a teenager allegedly attempting to board a Jetstar flight with a gun at Avalon airport.