An Israeli man had to be restrained after threatening to kill others and himself on a Qantas flight from Australia to Hong Kong on Thursday.

Qantas confirmed that the passenger "became disruptive" to the Sydney Morning Herald.

A passenger told the Australian daily that the man began to pray aloud in Hebrew and announced to the passengers: "I'm going to kill myself, you are all going to die, it will be God's will, what will be will be, I'm going to open the door."

The crew then reportedly held the man down and handcuffed him.

No one on the airplane was harmed, therefore Hong Kong Police told AFP that they would not charge him.

Hong Kong Police also said the passenger was 23 years-old and named Ariel. He is under observation at a Hong Kong hospital following feeling "emotional after complaining about the food and other services."

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