TEHRAN, Young Journalists Club (YJC) - Ground staff lost touch with flight JT610 of Indonesian budget airline Lion Air 13 minutes after the Boeing 737 MAX 8 took off early on Monday from Jakarta, on its way to the tin-mining town of Pangkal Pinang.
There were no survivors.
Indonesia's military chief said he believed the plane had been located, and a transport safety official said divers would be sent to confirm the origin of a "ping" signal picked up by a search and rescue team late on Tuesday.
"We strongly believe that we have found a part of the fuselage," armed forces chief Hadi Tjahjanto told broadcaster TV One.
Speaking on board the navy ship KRI Rigel, navy official Colonel Haris Djoko Nugroho told broadcaster TVOne that a 22-metre long object had been found in waters about 32 meters deep, and a sonar was being used to identify it.
Divers would also be sent to check, he said.
The Rigel has been searching in an area about 5 nautical miles from the site where the aircraft lost contact.
The plane's blackboxes, as the cockpit voice recorder and flight data recorder are known, should help explain why the almost-new jet went down minutes after take-off.
Although it is now almost certain that everyone on the plane died, relatives are desperate to find traces of their loved ones. Only body parts and debris have been found.
Investigators are looking into why the pilot of the downed aircraft had asked to return to base shortly after take-off, a request that ground control officials had granted, although the flight crashed soon after.
Source: Reuters