A hydro-oceanographic survey ship equipped with underwater detection capabilities also was on its way to the site around the oil spills.
Parts of the missing submarine sit on the seafloor off Bali, Indonesia.
Ultimately, Indonesia needs to develop its own submarine rescue capability.
Heri Oktavian, who died in the incident, had voiced his frustration with the maintenance status of the Nanggala to Edna C.
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The navy chief was speaking alongside the chief of Indonesia's military and its defence minister, Prabowo Subianto, at a news conference in Bali a day after the submarine went missing while conducting a torpedo drill north of the island.