Contact with Indonesia AirAsia flight QZ8501 lost after it left Surabaya in Indonesia
The Airbus A320-200 was carrying 162 people when it went missing over the sea en route to Singapore
Air search called off at 10:30 GMT due to poor visibility, but sea rescue operation continues
The plane had asked to change its flight path due to bad weather, AirAsia says
Most on board are Indonesian - one passenger has been confirmed as a British national
An emergency phone line for relatives has been set up - +622 129 850 801
This wraps up our coverage of the disappearance of AirAsia flight QZ8501. The plane lost contact with air traffic controllers between Indonesia and Singapore with 162 people on board.
You can continue to follow the story on the BBC News website and read further updates as the search operation resumes in the early hours of the morning.
The US National Transportation Safety Board (NTSB) says it is monitoring the search for the missing AirAsia jet and stands "ready to assist the Indonesians if needed", Reuters reports.
The search operation is due to resume as soon as weather conditions permit, most likely around 07:00 in the morning local time (00:00 GMT).
It is concentrating on an area of sea between Kalimantan, Borneo, and Java, Indonesia. Indonesian officials say that so far, no wreckage has been found.
Image source, ReutersFamily members face an agonising wait, with the search called off until first light - rescue ships and aircraft may not set off again for at least another nine hours.
Image source, ReutersIndonesia has accepted an offer from Singapore to launch four naval ships to join the search for the plane, Channel News Asia reports, quoting Singapore's Second Defence Minister Chan Chun Sing.
A C130 plane from Singapore has already been deployed in the search. Australia has also offered to assist with the rescue operation.
Until Sunday, AirAsia and its regional affiliates had enjoyed a clean safety record with no fatal accidents involving their planes, Gaurav Raghuvanshi writes in the Washington Post, external, quoting aviation experts.
It did, however, have a number of "runway excursions" - when an aircraft skids off the runway or tarmac - he says.
Indonesia's Vice-President Jusuf Kalla has told reporters that it is likely that the plane has encountered "an accident".
"For more than 10 hours of search now, there's a high possibility that an accident has happened (to the plane)," he told reporters at the National Search and Rescue Agency office in Jakarta.
Who is the man behind AirAsia? The BBC's Sharanjit Leyl profiles Tony Fernandes, a man who many see as Malaysia's answer to Richard Branson.
Ari Putro Cahyono, a resident of Surabaya, says he would have been on flight QZ8501 alongside nine of his relatives had it not been for a change in flight schedule, the Kompas.com website reports., external
He said he had "mixed feelings" after failing to read an email notifying him that the departure time had been brought forward by two hours, causing him and his family to miss the flight.
Alice Budisatrijo, BBC News, Surabaya
A few hours ago many of the relatives at the crisis centre in the airport still seemed calm - glued to their phones, perhaps trying to find any news of the plane or stay in touch with friends and loved ones.
But more than 12 hours since the plane took off they are looking increasingly worried. Officials still have no idea what happened to the aircraft.
AirAsia CEO Tony Fernandes has just given a press conference in Surabaya where he said that there was very little that he knew about the plane's whereabouts.
"Our concern right now is for the relatives and next-of-kin. There is nothing more important now than our crews' families and passengers' families, and we'll look after them," he said.
Image source, ReutersAirAsia has changed the colour of the logo on its website, external from red to grey. It has also set up a "crisis" page, external with information on the missing plane.
Image source, AirAsiaPope Francis says his thoughts and prayers are with the passengers of flight QZ8501, as well as the 478 passengers of the Italian ferry that is on fire off the coast of Corfu.
"I am sending prayers and love to their relatives and to people who are suffering in these difficult situations, as well as those who are working on the rescue operations," he said, speaking from the Vatican.
Anxious relatives await news of their loved ones at Indonesia's Juanda Airport, in Surabaya, more than 13 hours after the flight disappeared.
Image source, ReutersOf the relatives who gathered at Singapore's Changi Airport on Sunday, 16 have taken up the offer to fly to Surabaya, Indonesia, airport officials say. The rest have either gone home or retired to a hotel.
Another AirAsia flight reportedly turned back 10 minutes after take-off earlier today because of technical problems, the Straits Times reports, external. The domestic flight from Penang to Langkawi in Malaysia was later rescheduled and landed safely in Langkawi later on Sunday.
The Indonesian pilot of flight QZ8501 had clocked up a total of 6,100 hours of flying time, while his French first officer had a total of 2,275 flying hours, an earlier AirAsia statement, external said.
All the next-of-kin have now left the relatives' holding area for the night, says the spokesman for Singapore's Changi Airport, Ivan Tan. They have been waiting for news of their relatives for over 13 hours. AirAsia earlier said it was providing assistance to waiting family members.
The Straits Times
tweets, external: Singapore's Air Accident Investigation Bureau has offered specialists & underwater locator beacon detectors to assist with search of #QZ8501, external
These pictures by AirTeamImages.com, external show the actual Airbus A320-200 aircraft that has gone missing. The photographs were taken in 2012.
Image source, AirTeamImages.com
Image source, AirTeamImages.com