Authorities say at least four people were killed and seven were wounded, when a suicide bomber blew himself up in a soccer stadium in northwestern Pakistan.
有关当局说，一名自杀炸弹手在巴基斯坦西北地区的一个足球场引爆身上携带的炸弹，导致至少四人死亡，七人受伤。
Police official Faisal Mukhtar said Sunday's bombing apparently targeted refugees from the nearby Khyber tribal region as they registered with the government.
警方官员法伊索·穆克哈塔说，星期天的炸弹爆炸，显然针对来自附近基博部落地区的难民，因为这些难民已在政府那里登记。
No one immediately claimed responsibility for the attack.
目前还没有人立即声称，这次袭击是他们干的。
