The Australian Federal Police have launched an investigation into unauthorised radio transmissions with aircraft at Melbourne and Avalon Airports.
Authorities say they are investigating 15 incidents where unlawful interference was made with air traffic control broadcasts over the past several weeks.
The hoax calls are believed to have instructed aircrafts to land or change their flights paths.
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“There is no current threat to the safety and security of the travelling public as a result of these unlawful radio transmissions in the Melbourne area,” the AFP said in a statement.
“Travellers do not need to change their plans.”
A major investigation into the incidents is currently underway, with police warning those found responsible could face up to 20 years imprisonment.
“The AFP, Airservices, the Australian Communications and Media Authority and the aviation industry are all committed to ensuring the safety of the travelling public and we are treating this matter extremely seriously,” acting Assistant Commissioner Chris Sheehan said.
“These incidents are being thoroughly investigated by the AFP, with technical support from the ACMA.
“The airlines have been briefed to ensure the advice has been passed on to their pilots and to ensure appropriate measures are in place.”
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.