Citing evidence that the Taiba Mosque is still acting as a jihadist recruitment centre, police in the northern German city of Hamburg have shut it down indefinitely. The mosque was frequented by three of the September 11 hijackers, including ringleader Mohammed Atta. Twenty police officers searched the mosque early Tuesday morning while other officers recovered money from the bank accounts of certain members. A group of 10 men from the 45-member mosque are alleged to have traveled to Pakistan or Afghanistan last year to attend jihadist training camps, say German security officials. One member recently appeared in a German-language propaganda video encouraging Muslims to enlist in jihad. In March, four Islamic militants, including two ethnic-German converts, were jailed for planning a terrorist attack in Germany.