In Pakistan, the UN is estimating some half a million civilians have now fled clashes between government forces and Taliban fighters in Swat Valley. Both sides have declared an end to the three-month truce that allowed the Taliban to impose Islamic law. On Thursday, Pakistani Prime Minister Yousaf Raza Gilani announced a major offensive against Taliban fighters.

Pakistani Prime Minister Yousaf Raza Gilani: “After due deliberations and consultations with all concerned, the government has decided to take the following actions. In order to restore honor and dignity of our homeland and to protect the people, the armed forces have been called in to eliminate the militants and terrorists.”

Aid officials say the escalated fighting could bring about a major humanitarian crisis in Swat Valley.