1.   Among the victims was the son of a prominent local Sunni militant, Shah Mohammed, whom a court recently acquitted in a murder case involving minority Shiite Muslims.

2.   In Lahore, hundreds of police in riot gear were deployed as Sunni militants prepared to bury their dead.

3.   In recent weeks two Iranian cultural centers have been set on fire by Sunni militants, who accuse Iran of financing their Shiite Muslim rivals.

4.   In the past, Sunni militants in Pakistan have attacked these processions, often sparking widespread violence.

5.   Iran has denied the accusation, but mobs of Sunni militants have attacked two Iranian Cultural Centers in Pakistan and killed one diplomat.

6.   Police on Friday arrested three suspects in the attack, but have not yet said whether they were Sunni militants.

7.   Saudi Arabia and Oman cracked down on Sunni Islamic militants earlier this year.

8.   Several protest marches, called by Sunni militants to demand the release of their jailed comrades, turned violent.

9.   Sunni militants blame Iran for supporting extremist Shiite organizations, while Shiite Muslim activists accuse Saudi Arabia for helping Sunni groups.

10.   Sunni militants blamed the bombing on neighboring Iran, whose Shiite regime is often accused of backing militant Shiite groups in Pakistan.