TOKYO - Miyazaki Airport in southwestern Japan resumed operations on Sunday after determining that a magnetic reaction indicating the possible presence of an unexploded World War II bomb around a taxiway was caused by a large amount of iron sand, local media reported.

Japan Airlines canceled some of its flights Saturday night ahead of work to excavate the taxiway early Sunday, Kyodo News reported.

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The transport ministry's local office said Saturday it found what appears to be another unexploded World War II bomb after conducting a magnetic survey around the taxiway at the airport where a wartime bomb had exploded earlier this month.

The survey detected a 1.3-meter-wide object 1.6 meters below the ground, the office said.

On Oct 2, a 250-kilogram bomb dropped by the US military during the war exploded around the taxiway, leaving asphalt fragments scattered over a radius of some 200 meters, including the runway. No one was injured in the explosion.

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Formerly an air base of the Imperial Japanese Navy, Miyazaki Airport has seen two unexploded bombs unearthed in recent years, in 2011 and 2021.