Indonesia’s navy on Saturday said items were found from a missing submarine, indicating the vessel with 53 crew members had sank and there was no hope of finding survivors.

Navy Chief Yudo Margono said rescuers found several items from the KRI Nanggala 402, which disappeared after its last reported dive on Wednesday off the resort island of Bali, including parts of a torpedo straightener, a grease bottle believed to be used to oil the periscope and prayer rugs.