In early September 2001, an Egyptian militant named Rabei Osman Sayed Ahmed moves from Germany to Spain. By December, Spanish officials open an investigation about him after noticing he is in frequent contact with other Islamist militants. One month later, Spanish investigators notify German officials that they have Ahmed under surveillance and request information about his background. Ahmed apparently is aware he is under surveillance and tries to keep a low profile. [Washington Post, 11/14/2004] But through him, investigators led by judge Baltasar Garzon begin monitoring other militants he meets. In May 2002, they start tapping the phones of Fouad el Morabit and Basel Ghalyoun. In June, they realize Ahmed is in contact with Serhane Abdelmajid Fakhet, who has already been under surveillance since 2000 (see October 19, 2001). They also learn at some point that he is in contact with the brothers Moutaz and Mouhannad Almallah. Investigators lose track of el Morabit a near the end of 2002 when he changes phones. They also lose track of Ghalyoun aroun the same time because his conversations apparently are not interesting enough. Ahmed also moves to France. [El Mundo (Madrid), 7/31/2005] However, in early 2003, investigators begin monitoring an apartment where all the suspects mentioned live or meet (see January 4, 2003). All of them will later be accused of being key players in the 2004 Madrid train bombings (see 7:37-7:42 a.m., March 11, 2004).