11.   The bombing was claimed by the Islamic Jihad group and condemned by the Palestinian Authority.

12.   The bombings were claimed by Hamas and the smaller Islamic Jihad group.

13.   The bombings were claimed by the militant Hamas group, which has long opposed the peace process.

14.   The bombing was claimed by the militant Palestinian group Hamas and the bomber came from a West Bank village.

15.   The bombing was claimed by the militant Palestinian group Hamas.

16.   The bombing was claimed by the radical Islamic Jihad group.

17.   The bombings were claimed by the Muslim militant group Hamas.

18.   The bombing was claimed by Hamas, or the Islamic Resistance Movement, a militant group opposed to the autonomy accord with Israel.

19.   The bombings were claimed by the Islamic militant group Hamas, which vehemently opposes the Israel-Palestinian peace process.

20.   The bombings were claimed by the Palestinian Hamas movement, which opposes Middle East peace negotiations.