The IDF is investigating the circumstances behind the firing of twobr rockets that hit the Ovda and Mitzpe Ramon areas over the weekend.br Their remnants were found on Saturday following open area scans. It isbr believed that the rockets were fired by a cell from the Sinaibr Peninsula several hours before polling stations opened in the secondbr round of Egypt's presidential elections. Officials say the rocketsbr were launched after a request by senior leaders of the Muslimbr Brotherhood in Egypt. IDF sources have addressed the growing terroristbr activity in Sinai in the past year, linking the phenomenon to elementsbr in Gaza, but noted Israel's limited intelligence on the region.