Pakistani soldiers stand guard on a street during an Ashura procession in southwest Pakistan's Quetta on Nov. 25, 2012. At least five people were killed and 83 others injured when a blast hit a Shia Muslim procession to mark Muharram, the first month of the Islamic calendar, in Pakistan's northwest district of Dera Ismail Khan on Sunday morning, said a senior official. (Xinhua Photo/Iqbal Hussain)

A Pakistani soldier stands guard on a street during an Ashura procession in southwest Pakistan's Quetta on Nov. 25, 2012. At least five people were killed and 83 others injured when a blast hit a Shia Muslim procession to mark Muharram, the first month of the Islamic calendar, in Pakistan's northwest district of Dera Ismail Khan on Sunday morning, said a senior official. (Xinhua Photo/Iqbal Hussain)

A Pakistani soldier stands guard on a street during an Ashura procession in southwest Pakistan's Quetta on Nov. 25, 2012. At least five people were killed and 83 others injured when a blast hit a Shia Muslim procession to mark Muharram, the first month of the Islamic calendar, in Pakistan's northwest district of Dera Ismail Khan on Sunday morning, said a senior official. (Xinhua Photo/Iqbal Hussain)

A Pakistani soldier stands guard on a street during an Ashura procession in southwest Pakistan's Quetta on Nov. 25, 2012. At least five people were killed and 83 others injured when a blast hit a Shia Muslim procession to mark Muharram, the first month of the Islamic calendar, in Pakistan's northwest district of Dera Ismail Khan on Sunday morning, said a senior official. (Xinhua Photo/Iqbal Hussain)

Pakistani soldiers stand guard on a street during an Ashura procession in southwest Pakistan's Quetta on Nov. 25, 2012. At least five people were killed and 83 others injured when a blast hit a Shia Muslim procession to mark Muharram, the first month of the Islamic calendar, in Pakistan's northwest district of Dera Ismail Khan on Sunday morning, said a senior official. (Xinhua Photo/Iqbal Hussain)

Pakistani soldiers stand guard on a street during an Ashura procession in southwest Pakistan's Quetta on Nov. 25, 2012. At least five people were killed and 83 others injured when a blast hit a Shia Muslim procession to mark Muharram, the first month of the Islamic calendar, in Pakistan's northwest district of Dera Ismail Khan on Sunday morning, said a senior official. (Xinhua Photo/Iqbal Hussain)