They are:

• Sami Amin Al-Arian, 45, an engineering professor at the University of South Florida. A native of Kuwait, the US describes him as the group's US leader. He and the other three US residents have already been arrested.

• Sameeh Hammoudeh, 42, born in the West Bank, who also teaches at the University of South Florida.

• Hatim Naji Fariz, 30, originally from Puerto Rico and also living in Florida. He is a manager at a medical clinic.

• Ghassan Zayed Ballut, 41, a West Bank native now living in Illinois who owns a small business.

• Ramadan Abdullah Shallah, 45, a Gaza Strip native now living in Damascus. A former teacher at the University of South Florida, he is described as the worldwide leader of Palestinian Islamic Jihad.

• Bashir Musa Mohammed Nafi, 50, originally from Egypt and now living in Oxfordshire. Described by the indictment as the group's United Kingdom leader.

• Mohammed Tasir Hassan Al-Khatib, 46, originally from the Gaza Strip and now living in Beirut, described as the group's treasurer.

• Abd AL Aziz Awda, 52, born in Israel and now imam of the Al Qassam Mosque in Gaza Strip. The indictment calls him the founder and "spiritual leader" of the group.