SINGAPORE - The Singaporean onboard missing flight AirAsia QZ8501 is two-year-old Zoe Choi who was travelling with her father, Mr Choi Chi Man, a British national.

The Civil Aviation Authority of Singapore confirming this in a statement on Sunday night, said that it had made contact with the Zoe's mother and grandparents who were in the Relatives Holding Area at Changi Airport Terminal 2.

An Indonesia AirAsia aircraft, QZ8501, scheduled to arrive at 8.30am from Surabaya lost contact with Jakarta air traffic control at 7.24am. Singapore air traffic control was informed of this loss of contact at 7.54am by Jakarta air traffic control.

The CAAS added that it and Changi Airport Group (CAG) Crisis Management Centres were immediately activated and have been working closely with the AirAsia's crisis management team.

Singapore Rescue Coordination Centre (RCC), managed by CAAS and supported by various agencies, including the Republic of Singapore Air Force (RSAF) and the Republic of Singapore Navy (RSN), also launched one C130 aircraft for Sunday's search.

Two planes will set off early Monday morning to continue with the search.

CAAS added that it will also be sending an officer to the Indonesian National Search and Rescue Agency in Jakarta to assist in the coordination with the Indonesian authorities on the search operations.

The Transport Ministry Air Accident Investigation Bureau (AAIB) has also offered the Indonesian authorities two teams of specialists and two sets of underwater locator beacon detectors to assist with the search, it said.