Divers have found parts of the cockpit voice recorder as more personnel joined the search for wreckage and victims from an Indonesian plane that crashed last weekend in the Java Sea with 62 people on board.
The aerial search for the crashed Sriwijaya Air jet was being expanded as well, said National Search and Rescue Agency mission coordinator Rasman, who uses one name.
More than 4000 search and rescue personnel are supported by 14 planes, 62 ships and 21 inflatable boats.
They are using an underwater metal detector and remotely operated vehicle to search for human remains, the cockpit voice recorder and more wreckage.
Divers narrowed the search for the cockpit voice recorder after finding some of its parts.
"We have found the casing, the beacon and the CVR batteries. We need to search for the memory unit," the commander of the navy's First Fleet Command, Abdul Rasyid, said on Friday.
"We hope it will be not far from them," he said.
Investigators have downloaded information from the plane's flight data recorder, which was recovered earlier this week.
"There are 330 parameters and everything is in good condition. We are learning about it now," said Soerjanto Tjahjono, chairman of the National Transportation Safety Committee.
Families of those on board have been providing DNA samples to help identify them.
National Police spokesperson Rusdi Hartono said 12 of the 62 victims had been identified as of Thursday, including a flight attendant and an off-duty pilot.
Australian Associated Press