At least two persons were killed and ten others were wounded in an explosion Wednesday evening in Pakistans Southern Karachi port city, said police. The explosion took place outside Indus Plaza in Sohrab Goth area of the city. The nature of the blast was not yet clear. However, police said that two dead bodies and ten wounded have been shifted to nearby hospitals. The blast also damaged several nearby parked vehicles. Bomb Disposal Squad was determining the nature of the blast