The White House Thursday said it had no information about potential threats facing the United States ahead of the first anniversary of the killing of former al-Qaida leader Osama bin Laden in Pakistan.

White House press secretary Jay Carney told reporters that “at this time we have no credible information that terrorist organizations, including al-Qaida, are plotting attacks in the U.S. to coincide with the anniversary of bin Laden's death.”

But he stressed that al-Qaida's allies and affiliates “remain intent on conducting attacks in the homeland, possibly to avenge the death of bin Laden, but not necessarily tied to the anniversary.”

Earlier Thursday, U.S. President Barack Obama ordered a review of the threat picture and directed his team to take all necessary measures to protect the American people.

The world's most wanted terrorist was killed on May 2, 2011, by U.S. Navy SEALS in his walled compound in the garrison city of Abbottabad, not far from Pakistan's elite military academy. He was buried at sea.

Also Thursday, bin Laden's three widows and his children reportedly left the house where they have been staying in Islamabad and were headed to the airport to be deported to Saudi Arabia.

Earlier this month, a Pakistani court convicted the three widows and two of his daughters on charges of illegally residing in the country and sentenced them to 45 days detention to be followed by deportation.

The widows, two Saudis and one Yemeni, and several of bin Laden's children, have been in Pakistani custody since his death. They were formally arrested last month and received credit for time already served, shortening their sentence to two weeks.

Osama bin Laden's youngest wife told Pakistani police the al-Qaida leader spent nearly 10 years on the run in Pakistan following the September 11, 2001 attacks in the United States. She said the family moved to different safe houses around the country.

Amal Ahmed Abdulfattah, a 30-year old Yemeni, said she gave birth to four of bin Laden's children while in Pakistan, and that two of them were born in government hospitals.