The Malaysian authorities have decided to search

over much wider area to try to locate an airliner

that disappeared less than an hour into its flight

from Kuala Lumpur to Beijing.

Three days after the aircraft went missing,

an international effort involving ships and planes hasn't found

any wreckage, causing growing frustration for

the families of the 239 people on board.

Most of them came from China. John Sudworth reports

from Beijing. The search area has been widened and now

includes the waters on both sides of the Malaysian Peninsula.

It's a huge expansive sea and it shows that the authorities still have no idea

of what's happened to the missing plane.

They've released some very limited information about

the two men who boarded the flight using stolen passports.

They are not of an Asian appearance, the travel agent

who booked their tickets to Amsterdam via Beijing

says they did not specifically request flight MH370,

but took it because it was the cheapest route to Europe.