WASHINGTON: The heads of the House and Senate intelligence committees say the Justice Department must move quickly and ignore politics in investigating possible unauthorised disclosures of classified information.    

Democratic Senator Dianne Feinstein and Republican Rep. Mike Rogers suggested on CBS' ''Face the Nation'' that they're willing to see how prosecutors conduct their investigation before considering whether a department-appointed special counsel should take over.

Rogers says he'll be watching for signs of undue political influence.    Feinstein says she believes Obama's assertion that the White House wasn't involved in the disclosures and she hopes the investigation can ''get to a relatively quick disposition.''

The issues are disclosures about US involvement in cyberattacks on Iran and drone strikes on suspected terrorists, and an Al Qaeda plot to place an explosive device aboard a US-bound flight.—AP