Investigations into the origins of the Mumbai terror attacks are still on and FBI continues to assist Indian agencies, authorities in the US have said following reports that the Pakistani probe indicates that the strike was planned outside the country.

"I believe the investigation is ongoing as to the origins of the attacks," a National Security Council (NSC), White House, spokesman told PTI, when asked about news reports in this regard coming from Pakistan.

"We urge continued cooperation and close communication between India and Pakistan to bring the perpetrators to justice," the spokesman said.