A group of jihadists from the German city of Hamburg are alleged to be at the heart of the recent al Qaeda plot to launch co-ordinated terrorist attacks against European cities, according to European intelligence officials.
The plan prompted the U.S. State Department to issue a Europe-wide security advisory for Americans traveling in Europe.
Western intelligence officials say they learned about the plot when Ahmed Sidiqi, a German citizen of Afghan descent was arrested in Afghanistan in July and taken to the U.S. Airbase at Bagram for questioning. He has not been charged and intelligence sources in Germany say he is co-operating with the investigation.
In early 2009 Sidiqi and ten others left Hamburg for the tribal areas of Pakistan — where most joined a jihadist group fighting U.S. and coalition forces across the border in Afghanistan, according to German intelligence officials.
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