Sonar equipment being used in the search and rescue operation for the Indonesia AirAsia Airbus A320 operating flight QZ8501 has detected two large objects on the ocean floor that may be aircraft wreckage, AirAsia said Jan. 3.

In a statement issued on the seventh day of search and rescue mission, AirAsia said the National Search and Rescue Agency (BASARNAS) Republic of Indonesia had recovered 30 remains from the search area.

“The search process is still underway with the Russian SAR team joining the mission, strengthening the operation led by BASARNAS. Weather in the SAR area for tomorrow (Sunday) is forecasted to be much better with waves likely to decrease and remain at 2-3 metres.

“The officials have also announced that sonar equipment detected two large objects on the ocean floor which may be the wreckage of AirAsia flight QZ8501.”

The aircraft lost contact with ATC Dec. 28 during a scheduled flight from Surabaya, Indonesia, to Singapore and after reporting bad weather. There were 162 people onboard and no survivors were found.