[JURIST] Spanish authorities say they have arrested the "mastermind" of the Madrid train bombings of March 11 this year that killed almost 200 people. Rabei Osman Sayed Ahmed, an Egyptian national, was arrested by Italian police in Milan in June, but was formally extradited to Spain on Tuesday. Appearing briefly in Madrid's High Court before being transported to prison, he will face questioning next week by Judge Juan del Olmo, who is leading the judicial probe into the bombing. Ahmed's role in the plot is said to have been as prominent as two other suspects, a Tunisian and a Syrian, who blew themselves up when surrounded by police in a standoff in April. The Spanish authorities now have some 30 bombing suspects detained or under investigation. ITV has more. From Madrid, El Mundo provides local coverage in Spanish.