AL-ARISH, Egypt - Egyptian soldiers killed five Islamist militants after storming their hideout near the border with Israel on Sunday, the latest action in an army campaign to reimpose authority on the region, security sources and eyewitnesses said. The troops tracked down the militants in the settlement of al-Goura, about 15 km (10 miles) from the frontier, as they searched for jihadists who killed 16 Egyptian border guards and tried to infiltrate Israel a week ago. The latest clash is part of a security sweep that began on Wednesday and is the biggest military operation in the region since Egypt's 1973 war with Israel. No one has claimed responsibility for killing the border guards. It is an early test for Islamist President Mohamed Mursi - moderate Islamist elected in June following the overthrow last year of Hosnia Mubarak - to prove he can rein in militants whose actions on the border worries Israel. Security sources said five people were killed - three from bullet wounds and two more whose scorched bodies were found in the hut which was burned. "People in the area supplied information that there was a group of unidentified people staying in a makeshift hut. The area was immediately raided. The group opened fire and the police returned fire," one police source said. A senior police officer earlier said six people were killed. In addition to the five dead, one militant was seriously wounded and taken to hospital in al-Arish in north Sinai. The police sources, did not give their names because they are not authorized to speak to the media, said troops found guns, rocket launchers, a truck and a motorcycle at the scene. One officer said among the five dead was a Palestinian, but the report could not be independently confirmed. A resident of al-Goura told Reuters he had seen the lifeless bodies of two men who were not from the area.