UPDATE: Vietnam Spots Oil Slicks In Hunt For Missing Jet

By EILEEN NG and CHRIS BRUMMITT, Associated Press

KUALA LUMPUR, Malaysia (AP){}-- Vietnamese air force planes have spotted two large oil slicks that authorities suspect are from a Malaysian jetliner that went missing early Saturday.

A Vietnamese government statement says the slicks were spotted off the southern tip of Vietnam. The slicks were each between 10 kilometers (6 miles) and 15 kilometers (9 miles) long.

The statement said the slicks were consistent with the kinds that would be left by fuel from a crashed jetliner.

The Malaysia Airlines Boeing 777 disappeared from radar screens with 239 people on board en route to Beijing.

Malaysia's air force chief says that military radar showed the missing jetliner may have turned back, but would not give any more details during a press conference Sunday.

Meanwhile, counter-terrorism officials have been called in to investigate two passengers who were apparently able to get on the plane using stolen passports.