Egyptian State Council's administrative court on Monday postponed the probe into a case to stop constructions on the borders between Egypt and the Gaza Strip, also known as 'steel wall,' until September 21. The court referred the case to the State Commissioners' Authority, asking for a legal opinion on the matter, according to Egypt's MENA news agency. Egypt is building a huge underground steel wall in Rafah along the border with Gaza Strip in an attempt to curb smuggling into the Palestinian territory through tunnels. The case was filed by Egypt's former official Ibrahim Yousri, representatives of human rights organizations and other political activists. 