Jakarta, April 7 -- Indonesia's navy is investigating a suspected unmanned underwater vehicle discovered in waters north of Gili Trawangan, Lombok, officials said on Tuesday.

Navy Spokesperson Rear Admiral Tunggul said a team of experts would conduct a detailed technical assessment to determine the device's origin, function and any data it may contain.

"The navy will carry out an in-depth examination to identify the device, including its origin, purpose and stored data," he said when confirming the case in Jakarta.

The object was first spotted by local fishermen sailing in the North Gili Trawangan Strait, in North Lombok District, West Nusa Tenggara Province.

The fishermen reported the discovery to nearby navy personnel, who then secu...