1.   A Kashmiri separatist group claimed responsibility for the blast.

2.   A little-known separatist group claimed responsibility for the explosion.

3.   A terrorist group has claimed responsibility for the killing.

4.   Authorities said no group has claimed responsibility.

5.   No group claimed responsibility for the explosions.

6.   No group has yet claimed responsibility for the bombings.

7.   No rebel group has claimed responsibility for planting the explosives in the van.