Food aid distribution centers have been closed temporarily in Bajur Agency following a suicide bombing that killed 45 people outside a World Food Program depot, an official said.

Shafiq Khan, an official involved in the WFP food distribution project, said on Sunday the four relief centers in the Bajur district have been shuttered after the regional government ordered their temporary closure following Saturday's attack in the main town of Khar.

It was not immediately clear how long the food distribution points would be closed.

The World Food Program project in Bajur feeds thousands of people who have been displaced since early 2009 by fighting between the Pakistan military and insurgents.