In a Thursday interview with Arabic-language news network Al-Jazeera, Nasrallah accepted responsibility for the Wednesday attack, while conceding that an apology to the family was not sufficient.

On Thursday about 2,250 Americans left Lebanon, and another 3,000 are expected to depart Friday, State Department officials said.

Speaking to CNN from Haifa, Israel, the wife and father of Ehud Goldwasser, 31, and the brother of Eldad Regev, 26,