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Maritime Self-Defense Force submarine fires torpedo decoy by mistake

JIJI

A submarine operated by Japan’s Maritime Self-Defense Force mistakenly launched a torpedo decoy off the Kii Peninsula in western Japan early Thursday.

According to the Maritime Staff Office, no damage has been confirmed so far.

The MSDF is searching for the decoy, while investigating the cause.

The decoy was mistakenly launched during a drill by the Sekiryu submarine based at the MSDF’s Kure base in Hiroshima Prefecture.

The cylindrical device with a diameter of some 15 centimeters is about 1.6 meters long and weighs some 26 kilograms.

The decoy is used to issue an acoustic signature that causes incoming torpedoes to misidentify the device as the submarine.