LONDON: The Royal Saudi Naval Forces (RSNF) concluded a joint exercise in the south of the Greek island of Crete in the Mediterranean, with the participation of a number of countries. Rear Admiral Mohammed Al-Gharibi, RSNF deputy commander, attended the conclusion of the exercise, on behalf of Chief of the General Staff Lt. Gen. Fayyad Al-Ruwaili, the Saudi defense ministry said on Wednesday. The Medusa-11 exercise included a number of naval battle maneuvers, formations and amphibious operations, including storming coastlines, as well as an air show of combat helicopters and aircraft equipped with anti-submarine systems.