Complex sentence: The Egyptian Civilian Aviation Ministry issued a statement that indicated the flight was at an altitude of when it disappeared from radar screens after a steep descent of in one minute shortly before it disappeared north east of Nekhel.
Split into simpler sentences: The Egyptian Civilian Aviation Ministry issued a statement that indicated the flight was at an altitude of when it disappeared from radar screens after a steep descent of in one minute. The descent of occurred in one minute shortly before it disappeared north east of Nekhel.