About 10 members of a suspected terrorist cell linked to former Libyan leader Muammar Gaddafi\'s regime were arrested in the eastern city of Benghazi on Monday night, a senior security official said. The detainees, including three Chadians, have confessed their involvement in about 15 assassination cases staged in Benghazi in recent months, a security officer who spoke on condition of anonymity told Xinhua in a statement. The assassination cases were carried out against army officers and activists by means of setting explosive devices in their cars, according to the statement. The officer added that the suspects also admitted that they operated inside a terrorist cell that was behind all the recent attacks in Benghazi. Benghazi, the birthplace of the 2011 revolt which eventually toppled the Gaddafi regime, has witnessed increasing violence in the past months, especially since the September 2012 attack on the U.S. diplomatic mission that led to the death of the then U.S. ambassador and three others.