An Indonesian Lion Air jet with 189 passengers and crew plunged into the sea on Monday in what could be the country's deadliest aviation accident since 234 people died when an Airbus A-300B4 operated by national carrier Garuda crashed in 1997.
Below are the details known so far about the Lion Air crash involving a brand new Boeing-made plane, and the investigation.
What happened?
Lion Air flight JT-610 took off from Jakarta en route to Pangkal Pinang city at 6:20am (2320 GMT) on Monday. It crashed into the sea some 12 minutes later.
Two minutes after takeoff, Indian-born Captain Bhavye Suneja reported a flight control problem and requested permission to rise to 5,000 feet from 1,700 feet, according to the National Transportation Safety Committee (NTSC).