04:35: Ahmad Jauhari Yahya, CEO of Malaysia Airlines: "My heart breaks to think of the unimaginable pain suffered by all the family members... Everyone in Malaysia Airlines family is praying for the 239 souls on MH370 and for their loved ones on this dark day. We extend our prayers and sincere condolences."
04:33: The search effort was a "massive logistical exercise", Australia's Minister for Defence David Johnston said, adding that it was "one of the largest efforts you'll ever see in terms of maritime surveillance". He thanked countries, including China, Japan, South Korea, New Zealand and the US, for assisting the search.