An Indonesian court will Thursday hear an appeal by two Australian drug smugglers on death row against President Joko Widodo's refusal to grant them clemency, a last-ditch effort to halt the looming executions.

Myuran Sukumaran and Andrew Chan, the ringleaders of the so-called "Bali Nine" drug smuggling gang, were sentenced to death in 2006 for trying to smuggle heroin out of Indonesia.

Australia Sunday said it stopped two teenage brothers at Sydney Airport believed to be heading to the Middle East to fight, amid growing concern in Western countries over young people joining jihadist groups.

Immigration Minister Peter Dutton said the two boys, aged 16 and 17 and from Sydney, had tickets to an undisclosed Middle Eastern country and raised the suspicions of customs officers on Friday night.

A Lebanese man was on Friday sentenced to at least seven and a half years in jail in Australia for marrying a 12-year-old girl.

Judge Deborah Sweeney from the Downing Center District Court said the man embarked on a "determined and deliberate pursuit of the girl" until he married her at a private home on January 12, 2014.

The hunt for Flight MH370 has failed to turn up any debris, but its unprecedented scale in one of the world's remotest locations has provided valuable lessons for future search and rescue missions.

The Malaysia Airlines plane disappeared en route from Kuala Lumpur to Beijing on March 8, 2014, with mourning families and friends of the 239 people on board still waiting to hear what happened 12 months later.

Indonesia on Thursday rejected the offer of a prisoner swap proposed by Canberra in an 11th-hour bid to save two Australian drug smugglers facing execution, saying it is determined to put to death those "who have poisoned our nation".

Andrew Chan and Myuran Sukumaran, the ringleaders of the so-called "Bali Nine" drug trafficking gang, could be shot within days after being moved on Wednesday to the Indonesian island where they are due to face a firing squad.

Australian Prime Minister Tony Abbott on Thursday suggested the search for missing Flight MH370 may be scaled back, while expressing hope the jet would be found a year after it vanished.

The Malaysia Airlines plane disappeared en route from Kuala Lumpur to Beijing on March 8, 2014 with 239 people on board. No trace has been found despite a massive surface and underwater hunt.

Australian police Thursday said they had smashed an international criminal syndicate in a joint operation with Colombia, seizing more than 480 kilograms (1,058 pounds) of drugs hidden in lemonade bottles and flower boxes.

"We are cutting the head of the snake off here," said Tim Fitzgerald from the Australian Customs and Border Protection after six men in Sydney were charged. "This syndicate has been dismantled."

Chinese businessman Li Hua suffered a stroke, has considered suicide, and his wife has been hospitalized with heart trouble, all since their daughter went missing on flight MH370.

A. Amirtham, a retired Malaysian clinic worker, suffers fainting spells and a lack of sleep and appetite over the disappearance of her only son Puspanathan. 

Two Australian drug smugglers in Indonesia were transferred Wednesday to an island where they will be executed, as the Australian leader said his country was "revolted" by their looming deaths after frantic diplomatic efforts to save them.

Andrew Chan and Myuran Sukumaran, the ringleaders of the so-called "Bali Nine" drug smuggling gang, were woken early and given a few minutes to get ready before leaving Bali's Kerobokan jail in the early hours, said local justice ministry official Nyoman Putra Surya.

Two Australian drug smugglers on death row in Indonesia will be transferred Wednesday from their jail on Bali to an island off Java where they will be put to death, an official said.

Andrew Chan and Myuran Sukumaran, the ringleaders of the so-called "Bali Nine" drug trafficking gang, will be flown on a military aircraft, with a second plane escorting them, said Momock Bambang Samiarso, head of the Bali prosecutor's office.