Australian F-111 makes emergency landing

Australian air force officials say that one of their F-111 jets made an emergency landing earlier this week during an aerial display at the Singapore Airshow and will not participate in further performances.

The F-111's aircrew radioed a distress call after receiving an engine fire warning just two minutes into its seven-minute performance on Thursday, said Royal Australian Air Force Flight Lieutenant Leon Izatt, who was part of a two-man team piloting the jet.

Its crew immediately terminated the flight and made an emergency landing on one of the plane's two engines.

The airshow was likely to have been the last for the jet as Australia's air force plans to retire its F-111 fleet in December.

Singapore's airshow, which has featured displays of mostly military jets and helicopters this week and ends on Sunday, had already been marred by an earlier incident on the same day when a South Korean T-50 Golden Eagle jet was ordered by organisers to terminate its performance after it flew too close to spectators.

Wing Commander Micka Gray said there were no signs of a fire on the F-111. The plane remains grounded while maintenance crews investigate why the aircraft's fire warning went off.