Manila, July 14 -- Authorities arrested a female Canadian national after finding PHP164.7 million worth of shabu from her luggage at the Ninoy Aquino International Airport (NAIA) Terminal 3 in Pasay City, the Philippine Drug Enforcement Agency (PDEA) reported on Monday.

In a statement, the PDEA said alias "Grace," 66, arrived from Toronto, Canada via Hong Kong on Monday when members of the NAIA Inter-Agency Drug Interdiction Task Group (NAIA-IADITG) flagged the Canadian national based on intelligence-driven efforts.

The operation was led by the PDEA Regional Office-National Capital Region, working closely with the Bureau of Customs, the Philippine National Police Aviation Security Group, the Airport Police Department, the PNP Drug Enfor...