A leader of Hamas' armed wing arrived in the Gaza Strip on Saturday after escaping from an Egyptian prison.
Thousands of prisoners broke out of jail in Egypt amid security chaos as ongoing anti-government protests spread across the country.
Al-Qassam Brigades militant Ayman Noufel returned to Al-Buriej refugee camp in central Gaza, where he was received by his family and senior Hamas leaders.
Noufel was detained three years ago in El-Arish, when thousands of Palestinians broke out of Gaza through the wall on Egypt's border.
He was one of eight Palestinians who escaped from Egyptian jails, and six of the group have returned to Gaza.