TUNIS, Tunisia (AP) — A jailed Tunisian man is “strongly suspected” of being involved in the attack on the U.S. consulate in Benghazi that killed four Americans, a top Tunisian official has confirmed.

Interior Minister Ali Larayedh said were “major assumptions” that Ali Harzi, who was arrested and repatriated from Turkey, had a link to the attack in the Libyan city that killed U.S. ambassador Chris Stevens and three other Americans on Sept. 11 this year. It was unusual for Larayedh to speak so publicly about the sensitive investigation in the television interview late Wednesday.