Update at 10:20 a.m. ET: After Flight MH370 Disappeared, It Kept Telling Satellites 'I'm Awake':
Communications satellites continued to receive signals from the missing Malaysia Airlines plane for at least 5 1/2 hours after it disappeared over the Gulf of Thailand, a source familiar with the investigation tells NPR's Frank Langfitt.
Frank, reporting from Shanghai, writes that:
"Flight MH370's last known communication came after 1 o'clock last Saturday morning, local time, according to Malaysian officials.