Condemning terrorism as one of the most serious threats to peace and security, the Council called on countries to prosecute or extradite anyone supporting terrorist acts or participating in the planning of such schemes. Acting under Chapter VII of the United Nations Charter, it set up a working group to consider recommendations on measures to be imposed against "individuals, groups or entities involved in or associated with terrorist activities" not already identified by its Al-Qaeda and Taliban sanctions committee.[2] There was concern at the increasing number of victims of terrorist attacks, including children.