Indonesian divers located the tail of AirAsia Flight 8501 in the Java Sea on Wednesday, after detecting pings from the plane’s black box recorders.

Search-and-rescue official Suyadi Bambang Supriyadi said the pings helped lead searchers to the tail section, which is where jetliners’ flight-data and cockpit audio recorders are located. The sound of the pings was faint, he said, and once divers approached the tail, the pings were no longer audible.

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