CAIRO, July 13, 2018 (MENA) - Egyptian State Minister for Military Production Mohamed el Assar visited on Friday the persons who were injured in an explosion at a storehouse of Heliopolis Company for Chemical Industries. Up to 12 workers of the company were injured and moved to hospitals for treatment. Six of them were released from hospital. Earlier, Armed Forces Spokesman Colonel Tamer el Rifai said that the explosion occurred as a result of high temperature caused by the hot weather.