Missing Malaysia plane: What we know Latest
Underwater search
Recovery hope
Probing pulses
What we know
The search
Mystery continues to surround the fate of Malaysia Airlines flight MH370, which disappeared en route from Kuala Lumpur to Beijing on 8 March.
Malaysian authorities, assisted by international aviation and satellite experts, are now battling to piece together the plane's final hours in the hope that they can find its wreckage and explain what happened to its 239 passengers and crew.
Watch the video below to find out about the jet's last known movements.
00:41, 8 March: Malaysia Airlines Flight MH370 departed from Kuala Lumpur International Airport on Saturday, 8 March (16:41 GMT, 7 March), and was due to arrive in Beijing at 06:30 (22:30 GMT).
Malaysia Airlines says the plane lost contact less than an hour after takeoff. No distress signal or message was sent.
01:07: The plane sent its last ACARS transmission - a service that allows computers aboard the plane to "talk" to computers on the ground. Some time afterwards, it was silenced and the expected 01:37 transmission was not sent.
01:19: The last communication between the plane and Malaysian air traffic control took place about 12 minutes later. At first, the airline said initial investigations revealed the co-pilot had said "All right, good night". However, Malaysian authorities later confirmed the last words heard from the plane, spoken either by the pilot or co-pilot, were in fact "Good night Malaysian three seven zero".
A few minutes later, the plane's transponder, which communicates with ground radar, was shut down as the aircraft crossed from Malaysian air traffic control into Vietnamese airspace over the South China Sea.
01:21: The Civil Aviation Authority of Vietnam said the plane failed to check in as scheduled with air traffic control in Ho Chi Minh City.
02:15: Malaysian military radar plotted Flight MH370 at a point south of Phuket island in the Strait of Malacca, west of its last known location. Thai military radar logs also confirmed that the plane turned west and then north over the Andaman sea.
Map showing flight MH370's last known movements
08:11: (00:11 GMT, 8 March) Seven hours after contact with air traffic control was lost, a satellite above the Indian Ocean picked up data from the plane in the form of an automatic "handshake" between the aircraft and a ground station.
This information, disclosed a week after the plane's disappearance, suggested the jet was in one of two flight corridors, one stretching north between Thailand and Kazakhstan, the other south between Indonesia and the southern Indian Ocean.
08:19: There is some evidence of a further "partial handshake" at this time between the plane and a ground station but experts are still working on analysing this data, the Malaysian transport minister said on 25 March.
09:15: (01:15 GMT) This would have been the next scheduled automatic contact between the ground station and the plane but there was no response from the aircraft.
What happened next?
The plane's planned route would have taken it north-eastwards, over Cambodia and Vietnam, and the initial search focused on the South China Sea, south of Vietnam's Ca Mau peninsula.
But evidence from a military radar, revealed later, suggested the plane had suddenly changed from its northerly course to head west. So the search, involving dozens of ships and planes, then switched to the sea west of Malaysia.
Further evidence revealed on Saturday 15 March by the Malaysian Prime Minister Najib Razak suggested the jet was deliberately diverted by someone on board about an hour after takeoff.
After MH370's last communication with a satellite was disclosed, a week after the plane's disappearance, the search was expanded dramatically to nearly three million square miles, from Kazakhstan in the north to vast areas of the remote southern Indian Ocean.
Then, on 20 March, Australian search teams revealed they were investigating two objects spotted on satellite images in the southern Indian Ocean and sent long-range surveillance planes to the area, followed by further sightings. An Australian ship arrived in the area and further vessels are on their way.
At 1400 GMT on 24 March the Malaysian prime minister announced that following further analysis of satellite data it was beyond doubt that the plane had gone down in this part of the ocean.
This was based on Inmarsat and UK air accident investigators' analysis of the data relayed between the plane and ground station by satellite.
More potential debris was spotted by satellites but on 28 March the main search area was moved 1,100km (684 miles) to the north-east and closer to Australia, following further analysis of the speed of the plane and its maximum range.
Malaysian officials said that the debris could still be consistent with the new search area as ocean currents may have moved floating objects. However, no debris has yet been verified as being from the plane.
On 5-6 April, Australian and Chinese vessels using underwater listening equipment detected ultrasonic signals from the plane's black box flight recorders, in what appears to be the most promised lead so far.
Who was on board?
Arni Marlina, 36, a family member of a passenger onboard Flight MH370, shows a family picture on her mobile phone, at a hotel in Putrajaya, Malaysia, 9 March Muhammad Razahan Zamani (bottom right), 24, and his wife Norli Akmar Hamid, 33, were on their honeymoon on the missing flight. The phone is being held by his stepsister, Arni Marlina The 12 crew members were all Malaysian, led by pilots Captain Zaharie Ahmed Shah, 53 and 27-year-old co-pilot Fariq Abdul Hamid.
Police have searched their homes and a flight simulator has been taken from the captain's home and reassembled for examination at police headquarters.
There were 227 passengers, including 153 Chinese and 38 Malaysians, according to the manifest. Seven were children.
Other passengers came from Iran, the US, Canada, Indonesia, Australia, India, France, New Zealand, Ukraine, Russia, Taiwan and the Netherlands.
Two Iranian men were found to be travelling on false passports. But further investigation revealed 19-year-old Pouria Nour Mohammad Mehrdad and Delavar Seyed Mohammadreza, 29 were headed for Europe via Beijing, and had no apparent links to terrorist groups.
Among the Chinese nationals was a delegation of 19 prominent artists who had attended an exhibition in Kuala Lumpur.
Malaysia Airlines said there were four passengers who checked in for the flight but did not show up at the airport.
The family members of those on board were informed by in person, by phone and by text message on 24 March that the plane had been lost.
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Recovery hope boost Searchers hear signals Checking pulses Search logistics Black-box answers 10 questions Mourning the missing The debris Who are the pilots? Salvage challenges Day of searching Armchair hunters The passengers Inside Inmarsat's operations room'Pings' tracked plane Watch
The BBC's Richard Westcott speaks to Chris McLaughlin, from the British satellite firm Inmarsat, about their analysis that helped track the missing Malaysia Airlines plane.
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How can a plane vanish?A 5 April 2014 image shows Commander James Lybrand (R), mission commander on the Australian Defence Vessel Ocean Shield, with Captain Nick Woods (C), master of the ship during the search for missing Malaysia Airlines flight MH370, in the southern Indian Ocean Sea search for more plane signals
Teams searching for the missing Malaysian plane say they need more contact with signals picked up over the weekend before using a submersible to search for debris.
http://www.bbc.co.uk/news/world-asia-26503141Robot submarines may be used soon as area of pings located
http://www.bbc.co.uk/news/world-asia-26514556Edit= News addition
