Obama Orders 'All Appropriate Steps' over Qaida Threat

President Barack Obama has ordered that "all appropriate steps" be taken to protect Americans in response to a threat of an al-Qaida attack, a White House official said Friday.

"The president is being updated on a potential threat occurring in or emanating from the Arabian Peninsula," the official said on condition of anonymity.

One day after announcing it would close a number of embassies across the Islamic world on Sunday, the U.S. State Department issued a worldwide warning that al-Qaida may attack in August.

It said attacks were possible "particularly in the Middle East and North Africa, and possibly occurring in or emanating from the Arabian Peninsula."

"The State Department's newly-released travel alert makes clear that al-Qaida and affiliated organizations continue to plan terrorist attacks both in the region and beyond," the official said.

Obama "will continue to be updated on a regular basis" on the threat and related developments, the official added.