Dec. 16 (UPI) -- The two suspects in the deadly mass terror attack in Bondi Beach in Sydney over the weekend spent most of November in the southern Philippines, where they allegedly received military-style training from Islamic militants.

The Philippine Bureau of Immigration told ABC News on Tuesday that the father and son, Sajid Akram, 50, and Naveed Akram, 24, arrived in the Philippines from Australia on Nov. 1, giving Davao on the southern island of Mindanao as their destination.

"They left the country on Nov. 28, on a connecting flight from Davao to Manila, with Sydney as their final destination," said Immigration Bureau spokesperson Dana Sandoval.

Australian national security officials said investigators were now looking at the duo's links to an international jihadist network after a senior counterterrorism officer said the pair underwent terrorist training on the island.

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