Authorities believe invisible force dragged submarine to bottom of the oceanThe submarine that sank off the coast of Bali killing 53 sailors may have been hit by an invisible force that dragged the vessel to the bottom of the ocean. Indonesian defence force officials believe an internal solitary wave was responsible for the sinking of the KRI Nanggala 402 last Wednesday. Authorities said an intense internal wave was recorded off the coast of Bali last Wednesday morning, the same time the submarine disappeared. Because an internal solitary wave occurred at that time in the north of Bali,' the submarine's former commander Rear Admiral Muhammad Ali told Indonesian media. Officials are now confident the incident was the result of internal waves, which are common in the area off Bali.

Source: Daily Mail April 29, 2021 22:58 UTC