A Qantas Airways flight from New Zealand landed safely at Sydney airport on Wednesday after the airline said it had issued a distress signal due to an issue with one of its engines.
The Boeing jet from Auckland had an in-flight engine shutdown and issued a "mayday" call while flying over water an hour from its destination of Sydney, a Qantas spokesperson said in a statement.
The mayday signal, which indicates grave and imminent danger, was downgraded to "Possible Assistance Needed" before landing, the spokesperson added.
All 145 passengers disembarked normally when the plane landed in Sydney around 3:30 pm local time (0430 GMT).
"While in-flight engine shutdowns are rare, and would naturally be concerning for passengers, our pilots are trained to manage them safely and aircraft are designed to fly for an extended period on one engine," the airline said.
Passengers told local media they heard a loud bang mid-flight but had not realised there was a problem until the pilot made an announcement on landing.
"I turned on my phone and my wife had called me 18 times, 'Have you landed, have you landed?'" an unnamed passenger told reporters at the airport.
Qantas said it would share more information once engineers had finished inspecting the aircraft.

Iran rejects Trump's talk of negotiation as Israel and Iran launch airstrikes
Cyprus has opened discussion with UK over its bases, president says
Netanyahu seeks to avoid snap vote as Iran war gives no boost in polls
Luxury Paris hotel near Elysee reopens after fire forces brief closure
Germany renews push for sugar tax and energy drinks ban for children
No injuries reported as drone attack hits fuel tank at Kuwait's airport
US expected to send thousands more soldiers to Middle East
Philippines works with Washington to obtain oil from US-sanctioned countries
