Mid-November 2001: Alleged British Al-Qaeda Informer Arrested and Released

Atif Ahmed, an alleged co-conspirator of Zacarias Moussaoui, is arrested in London, but is released soon after. Ahmed was named as an associate by Moussaoui in August (see August 17, 2001) and the arrest follows a search of his flat, which produces enough evidence for an arrest warrant. The FBI works closely on the case with the New York Police Department and London police, and evidence about Ahmed comes from various parts of the FBI’s 9/11 investigation. Investigators also find a phone call that suggests Ahmed and Moussaoui were working together. [ABC News, 11/14/2001] However, Ahmed is released a few days later and British security sources will later describe Ahmed as a minor figure in the London Islamist underground. [Financial Times, 9/19/2002] Moussaoui will later claim that Ahmed is a British agent and had foreknowledge of 9/11 (see July 25, 2002).