Bangladesh, Nov. 12 -- Cairo - In the wake of an internal survey that detailed multiple allegations of rape and sexual harassment of its female staffers, the leader of the World Food Program is vowing to go after abusers.

David Beasley, the U.N. agency's executive director, said in a recent interview with The Associated Press that he is "making hard choices to bring change" to the WFP.

"If we have a claim of rape by anyone in the WFP, if we can substantiate, I can't begin to tell you how aggressive" actions will be, he told the AP in a phone interview from the agency's Rome headquarters.

The warning comes after an internal survey which Beasley commissioned found that at least 28 employees said they experienced rape or sexual assaults w...