Stolen passports probed in missing Malaysia Airlines plane mystery

Asked by a reporter what they looked like, he said: "Do you know of a footballer by the name of (Mario) Balotelli? He is an Italian. Do you know how he looks like?" A reporter then asked, "Is he black?" and the aviation chief replied, "Yes."

Possible causes of the apparent crash include an explosion, catastrophic engine failure, terrorist attack, extreme turbulence, pilot error or even suicide, according to experts, many of whom cautioned against speculation because so little is known.

Malaysia's air force chief, Rodzali Daud, has said radar indicated that before it disappeared, the plane may have turned back, but there were no further details on which direction it went or how far it veered off course.

On Sunday, a Vietnamese plane spotted a rectangular object that was thought to be one of the plane's doors, but ships could not locate it. On Monday, a Singaporean search plane spotted a yellow object 140 kilometers (87 miles) southwest of Tho Chu island, but it turned out to be sea trash.

Malaysian maritime officials found oil slicks in the South China Sea, but lab tests found that samples of it were not from an aircraft, Azharuddin said.

Selamat Omar, a Malaysian whose 29-year-old son Mohamad Khairul Amri Selamat was a passenger on the flight, told of getting a call from the airline saying the plane was missing.

"We accept God's will," Selamat said. "Whether he is found alive or dead, we surrender to Allah."