Seoul/Montreal — When Pakistan closed its airspace during conflict with India in February, Malaysia Airlines was not one of the carriers left scrambling to reroute flights because it had already done so two weeks earlier, the carrier’s CEO has said.

Nearly five years after Malaysia Airlines Flight MH17 was shot down by a missile over Ukraine, killing all 298 people on board, carriers such as Malaysia Airlines are increasingly taking steps to uncover any threats to their planes.

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