Security Tightened for Obama's Kenyan Family

Kenya has tightened security around the home of U.S. President Barack Obama's step-grandmother after the killing of Osama bin Laden, an official said Thursday.

"In the wake of security challenges including terror threats, I can confirm that we decided to enhance security at the home of Mama Sarah ...," said regional administrator Francis Mutie, using the popular name for Obama's step-grandmother who lives in western Kenya.

There have been no direct threats against the family but Kenya is on the alert after threats by al-Qaida followers after Bin Laden was killed by U.S. special forces in Pakistan on May 2.