Built in 1978, the nearly 1,550-ton submarine entered active service in 1981.
Can I get opinions on this matter? The submarine went missing early on Wednesday off the Indonesian island of Bali while carrying out torpedo drills.
Singaporean rescue ships were also expected later Saturday, while Malaysian rescue vessels were due to arrive Sunday, bolstering the underwater hunt, Indonesia military spokesperson Djawara Whimbo said ahead of the press conference.
Widjojono stated that a team of divers was searching for the boat.
It needs a good proofreading.
Indonesia, the world's largest archipelago nation with more than 17,000 islands, has faced growing challenges to its maritime claims in recent years, including numerous incidents involving Chinese vessels near the Natuna islands.