Nonetheless, the CIA's alleged programme prompted several official investigations in Europe into the existence of such secret detentions and unlawful inter-state transfers involving Council of Europe member states. A June 2006 report from the Council of Europe estimated 100 people had been kidnapped by the CIA on EU territory (with the cooperation of Council of Europe members), and rendered to other countries, often after having transited through secret detention centres ("black sites") used by the CIA, some located in Europe. According to the separate European Parliament report of February 2007, the CIA has conducted 1,245 flights, many of them to destinations where suspects could face torture, in violation of article 3 of the United Nations Convention Against Torture.