71.   Authorities have blamed the attacks on ethnic Azerbaijanis, but have made no arrests.

72.   Authorities have blamed the attacks on ethnic Azerbaijanis.

73.   Authorities blamed both attacks on ETA.

74.   Authorities have blamed the attacks on militant groups opposed to efforts to bring peace to the poverty-stricken Central Asian republic.

75.   Barrero blamed the attack on the Revolutionary Armed Forces of Colombia, or FARC, the biggest rebel group in Colombia.

76.   Bermeo blamed the attack on rival politicians whom he claimed Friday were behind several anonymous calls threatening his life over the past year.

77.   Bosnian officials blamed the attacks on nearby Serb gunners.

78.   Both attacks have been blamed on Osama bin Laden and his al-Qaida terror network, the main targets in the U.S. campaign in Afghanistan.

79.   Both attacks were blamed on Islamic extremists.

80.   Both attacks were blamed on the Basque separatist group ETA.