Police arrested four Egyptians early Saturday as they attempted to illegally cross the Egypt-Gaza border through an underground tunnel, police said. The four men were arrested at dawn and were transferred to the Suez Canal city of Ismailiya for military prosecution, police officer Mohammed Badr said. No weapons or drugs were seized in the arrest. It is not immediately clear why the four were trying to cross into the Gaza Strip. Earlier Staurday, IDF troops on duty in an outpost in northern Samaria shot at two Palestinians who approached the security fence, wounding one. A sweep of the area after the shooting revealed two bombs, one containing 25 kg. of explosives, which sappers proceeded to neutralize.