Submarine carrying 53 crew members and very limited oxygen submerged yesterday and hasn't been seen since

During Indonesian Navy training exercises in the Bali Strat yesterdays, a submarine (seen above) carrying 53 crew members submerged and hasn't resurfaced. Its current location is unknown and authorities say that it only has enough oxygen for two more days. Multiple ships with advanced sonar capabilities are scanning the region for signs of the 60-meter submarine. — Read the rest