Turkish authorities on Wednesday apprehended two individuals suspected of involvement in the September attack on a U.S. diplomatic outpost in Libya, Bloomberg Businessweek reported on Thursday.
The two possible attackers, from Tunisia, and three associates were taken into custody at the Ataturk airport in Istanbul when they tried to pass through security with fraudulent identification documents, according to a Kanal D television report.
It is not known if the men would be sent to Libya or the United States for possible prosecution.
The Sept. 11 assault on the U.S. Consulate in Benghazi resulted in the death of U.S. Ambassador to Libya Chris Stevens and three other American diplomatic personnel. A Libyan extremist group, Ansar al-Shariah, and al-Qaida in the Islamic Maghreb are suspected of involvement in the attack.
Turkish police have not offered a statement on the arrests. The U.S. State Department in Washington also declined to discuss the matter.
U.S. Attorney General Eric Holder on Thursday said he was "satisfied with the progress" his department is making in probing the Benghazi attack. "You should not assume that we could do or have been doing is restricted solely to Benghazi," he said to journalists. "There are a variety of other places in country and outside the country where relevant things could be done and have been done."
FBI investigators, backed by U.S. military personnel, were after an extended delay able to inspect the abandoned U.S. diplomatic compound in Benghazi on Thursday, Defense Department spokesman George Little informed the press.