The commemoration ceremony will be held in Ramallah, the group said, at 3pm, and protest the Israeli move to detain Sa'adat from prison in Jericho, where he was serving a sentence from a Palestinian Authority court.
On Tuesday, the group said, the Israeli prison service transferred Sa'adat to a new isolation cell, and condemned the move.
The Campaign said the party leader was moved from an isolation cell in the Eshel Prison to a new solitary cell in the Ohalei Kedar Detention Center.
