The Malaysian government has repeatedly turned down Interpol's offer to help in the search for missing Malaysia Airlines Flight 370, Western law enforcement told ABC News.
"It's the old pre 9/11 approach: close-hold information, don't share anything," a law official told ABC News.
Officials are concerned that by denying help from Interpol, the largest international police organization in the world, potential information and clues as to where the missing Boeing 777 is could be lost.
The Beijing-bound, 239-passenger plane mysteriously disappeared after it lost contact with Subang Air Traffic Control early morning on Saturday, March 8.
Since then a 14-country international search has been underway and several theories from a crash to terrorism plots have been suggested. However there is no official reason and the plane has not been found.
In addition to Interpol, the FBI has received no calls for help from the Malaysian government. The airline company released a statement saying no information has been withheld.
"Malaysia Airlines has shared all available information with the relevant authorities since the moment we learned that the aircraft had disappeared," said the statement obtained by ABC News. "This is truly an unprecedented situation, for Malaysia Airlines and for the entire aviation industry."
Flight 370 was last known to be somewhere between Malaysia and south Vietnam. Investigators believe the plane did not experience any technical failure, but was deliberately flown off its course, according to ABC News.
U.S. officials said the plane's communication systems were shut down one by one, with the transponder being shut down 14 minutes after the data reporting system was turned off, ABC News reported.
The investigation included a visit to the home of the plane's captain, Zaharie Ahmad Shah, a veteran captain with a wife and three adult children.
Malaysian Prime Minister Najib Razak said the plane was in the air for more than seven hours and could have gone as far as Kazakhstan, ABC News reported. Razak did not confirm if the plane had been hijacked.
"We are still investigating all possibilities as to what caused MH370 to deviate from its original flight path," Razak said, ABC News reported.
