The new flotilla is being organized by the Foundation for Human Rights and Freedoms and Humanitarian Relief” (Insani Yardim Vakfi), otherwise known as the IHH, the same organization behind the Mavi Marmara ship, which Israel Navy commandos boarded, killing nine aboard who attacked them.
Israel and the US have both labelled the IHH a terrorist organization.
IHH chairman Bulent Yildrim told local Turkish media last week that the activists will set sail as they had received permission from the authorities in Ankara and that the Turkish Navy will provide protection.
Diplomatic officials said Jerusalem was following the reports carefully, but stressed that it was not clear whether the flotilla would ultimately set sail.
So far there has only been a declaration of intent, with no firm date set, one official said.