The missing AirAsia Indonesia flight QZ8501 is likely to be at thebottom of the sea, the head of Indonesia's search-and-rescue agency has said.
Bambang Soelistyo said the hypothesis was based on the co-ordinates of the plane when contact with it was lost.
The search for the Airbus A320-200, which disappeared with 162 people on board on Sunday on a flight to Singapore, has ended for a second day.
The search area will be widened on Tuesday.
The pilots had requested a course change because of bad weather but did not send any distress call before the plane disappeared from radar screens between Borneo and Sumatra.
"Based on the co-ordinates given to us and evaluation that the estimated crash position is in the sea, the hypothesis is the plane is at the bottom of the sea," Bambang Soelistyo, the head of Indonesia's search and rescue agency, told a news conference in Jakarta.