The United Nations Chief Ban Ki-moon has condemned the suicide bomb attack at the UN World<br/><br/>Food Programme (WFP) office in Islamabad, which has claimed fives lives and injured at least six others.<br/><br/>In a statement Mr Ban said this is a terrible tragedy for the United Nations and for the whole humanitarian community in Pakistan.<br/><br/>Five people, including an Iraqi national and two Pakistan women, were killed and six injured when a suicide bomber disguised as a security officer struck at the UN food agency's office. The incident prompted the UN to close all its offices across Pakistan.