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The IDF said the reward was offered after consultations with the families of the 69 sailors from the missing submarine.

Numerous searches have been undertaken for the Dakar. Last summer the U.S. Navy aided in a sweep of the ocean floor near the Aegean Sea, but no signs of the wreckage were found.

It is believed the Dakar dived deeper than it should have due to human error or a technical malfunction, thus causing its frame to buckle under the weight of the sea.

Anyone wishing to obtain a more detailed explanation of the reward can request it from the Administration of the Search Program for the Dakar. Military P.O. Box 01068, IDF, Israel. The last date to submit information is Dec. 14, the announcement said.