Najib said he understood the need for families to receive information, but that his government wanted to release only fully corroborated reports. He said his country has been sharing information with international investigators, even when it meant placing "national security concerns" second to the search. U.S., British and Malaysian air safety investigators have been on the ground in Malaysia to assist with the investigation.
In the Chinese capital, relatives of passengers who have anxiously awaited news at a hotel near Beijing's airport said they felt deceived at not being told earlier about the plane's last signal. "We are going through a roller coaster, and we feel helpless and powerless," said a woman, who declined to give her name.
At least one of the relatives saw a glimmer of hope in word that the plane's disappearance was a deliberate act, rather than a crash. "It's very good," said a woman, who gave only her surname, Wen.
Malaysian police have already said they are looking at the psychological state, family life and connections of pilot Zaharie Ahmad Shah, 53, and co-pilot Fariq Abdul Hamid, 27. Both have been described as respectable, community-minded men.