A U.S. official said Wednesday that the Malaysian government is seeking the FBI's help in analyzing any electronic files deleted last month from the home flight simulator of the pilot of the missing Malaysian plane.

Aviation Structural Mechanic 2nd Class Matthew Walton, assigned to Patrol Squadron (VP) 16, sprays down a P-8A Poseidon with fresh water before its flight to assist in search and rescue operations for Malaysia Airlines flight MH370 ( Mass Communication Specialist 2nd Class Eric A. Pastor/U.S. Navy via Getty Images)

The official, speaking on condition of anonymity, said the FBI has been provided electronic data to analyze.

Malaysia's defense minister said earlier Wednesday that investigators were trying to restore files deleted last month from the home simulator used by the pilot, Capt. Zaharie Ahmad Shah, to see if they shed any light on the disappearance. Files containing records of simulations carried out on the program were deleted Feb. 3.

At a news conference Wednesday, Attorney General Eric Holder told reporters that "I don't think we have any theories" about what happened to the plane but said the FBI has been in touch with Malaysian investigators about providing any help that it can.

"We are in ongoing conversations about how we can help and we will make available whatever resources that we have, whatever expertise we have, that might be able to be used," Holder said.

Malaysia Airlines Flight 370 with 239 people aboard disappeared March 8 on a night flight from Kuala Lumpur to Beijing.

(Copyright 2014 The Associated Press. All Rights Reserved)