Link between Casablanca attacks and Madrid train bombs?

A Moroccan national held over the Madrid train bombs in March 2004 may be the leader in Europe of a militant Islamist group accused of carrying out the Casablanca bombings in 2003 which also hit a Jewish center and a cemetery, the news agency Reuters reports. The Moroccan Islamic Combatant Group (MICG) is suspected of playing a role in both the Madrid attacks, which killed 191 people, and the May 2003 Casablanca bombings, in which 33 people and the 12 suicide bombers were killed. Spanish police arrested four Moroccans, all suspected MICG members, on Lanzarote (Canary Islands) on Friday. Their leader was named as 41-year-old Hassan el Haski, the focus of two investigations by Spain's High Court. Judge Juan del Olmo had issued a warrant for Haski's arrest in connection with the March 11 attacks while Judge Baltasar Garzon is investigating his links to the MICG.