An Indonesian navy submarine with 53 sailors has gone missing. The submarine went missing during a drill north of Bali Island on Wednesday.
According to the BBC, the submarine took part in a training exercise north of Bali Island. But since then it has not been found. The Indonesian military chief said a submarine named KRI Nangala-402 had been sent in search of the warship.
Indonesian authorities have sought the cooperation of Australia and Singapore to find the submarine. However, no comment has been received from the two countries yet.
The German-built KRI Nangala-402 submarine is thought to have gone missing in the waters about 60 miles (96 km) off the coast of Bali early Wednesday night.
First Admiral Julius Widjozno told AFP the navy was looking for it. This area is familiar to us, but it is quite deep.
Several sources said communication was cut off after the submarine sank in deep water.
KRI Nangala-402 is one of the five submarines of Indonesia.
It was built in the late 1980s, according to Reuters. In the middle it was taken to South Korea for repairs. Two years later, in 2012, the repair work was completed.