Pakistan which has a mostly Sunni population has seen sectarian attacks against minorities including Shias who account for about 20 % of Pakistan 's population . It is estimated that 4000 people have been killed in religious violence over the last decade . This was the third attack against Lahore 's minority communities in 2010 : in May two mosques were attacked belonging to the Ahmadiyya Muslim Community , and in July the Sufi community came under attack . While the government of Pakistan has banned several militant groups many of them have re emerged under different names and critics say that governments reluctance to act against them is encouraging them
Sufi community came under attack
July 2010 Lahore bombings
September 2010 Lahore bombings