Video shows Indonesian submarine crew singing in the weeks before vessel sank

A video released by the Indonesian military shows the crew of the KRI Nanggala-402 submarine singing the song Sampai Jumpa ('Goodbye') together, weeks before the vessel sank in the Bali Sea. None of the 53 crew members survived. The submarine was found broken in three parts on the seabed

• Photos show missing Indonesian navy submarine found broken up on seabed