In Pakistan, a grenade explosion has killed two young girls and injured two others in the city of Peshawar. The children were playing in the Ram Krishan area when they were attacked. Their father, Rais Khan, told reporters today, the attackers threw a grenade at his house because he had refused to pay them protection money. Meanwhile, angry residents have set up a road-block with the bodies on the road that links Peshawar and Charsadda town, closing it to traffic. No group has claimed Wednesday's attack.