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	In a statement, the Manila International Airport Authority (Miaa) said it received information from the Manila Control Tower that Saudia flight SVA 872 from Jeddah was &ldquo;under threat&rdquo; 20 miles before landing.</div>
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	The plane is carrying returning pilgrims from the annual hajj. Passengers should have disembarked at 1 p.m.</div>
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	Miaa said it is still confirming reports that the plane was hijacked, adding that it was isolated for security protocol.</div>
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	Miaa said authorities are conducting standard operating procedure in accordance with the airport emergency plan.</div>
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	Situation in the area remains unclear. Personnel of the Philippine National Police Aviation Security Group airport authorities and airline executives are on site.&nbsp;</div>

Saudia plane isolated at Naia runway

A commercial flight from Saudi Arabia was placed in total isolation upon landing at the Ninoy Aquino International Airport on Tuesday afternoon.