Tunisian state media says Libyan and American forces captured Abu Iyadh . A Libyan spokesman said American forces were not involved . Ansar al Sharia in Tunisia denies the Islamist group leader 's arrest .
Tunisian state media says Libyan and American forces captured Abu Iyadh . A Pentagon spokesman say U.S. forces were not involved . Ansar al Sharia in Tunisia denies the Islamist group leader 's arrest .