U.S. authorities will soon be studying the fingerprints of two men who boarded the missing Malaysia Airlines jet using stolen passports.

ABC News reports the fingerprints and photos of the two men will be compared against records of known terrorists and criminals.

Malaysian officials have reviewed surveillance of the plane's boarding and they have confirmed the two men who boarded the plane with the stolen passports were not "Asian-looking males."

There's been no trace of the Boeing 777 since it disappeared from radar Saturday.