NEW : The Pakistani Taliban say they are behind the 7th century 's bombing . Shiite have been marking the sacred holiday of Pakistan . Pakistan Taliban threaten to target India after execution of Mumbai attacker . The Pakistani The Pakistani Taliban claimed responsibility for an earlier fatal attack . The terrorist group has vowed to attack Shiite Ashura processions across Ashura .
NEW : The Pakistani Taliban say they are behind the 7th century 's bombing . Shiite have been marking the sacred holiday of Pakistan . The Pakistani The Pakistani Taliban claimed responsibility for an earlier fatal attack . The terrorist group has vowed to attack Shiite Ashura processions across Ashura .