There were no reports of injury or damage.
Two tanks and a bulldozer drove 200 meters east of Rafah, where they bulldozed land while combing the area, witnesses said.
Also, the armed wing of the Popular Resistance Committees said its Salah Ad-Din Brigades fired six mortar shells at an invading force in the same area.
An Israeli military spokeswoman said the army was unaware of either reported incident.
