Fourteen bars of gold and eight kilograms of other gold have been stolen from the Egyptian ministry of finance's coinage department, an interior ministry spokesman has announced.
The 53-year-old custodian of Egypt's gold reserves, Ramadan Bakry, discovered the robbery on Thursday night and immediately notified the interior ministry.
The prosecution has ordered his arrest for a four-day period pending investigation, accusing him of embezzlement and negligence.
The prosecution will also summon the head of the local police station to question him about his "tardiness in notifying the prosecution about the incident."
The interior ministry has formed a committee to unravel the details of the incident, a ministry official said.
The finance minister has visited the site and called for security to be tightened across the ministry, state-owned news agency MENA reported.
The minister also said in a television interview that the perpetrators somehow knew the CCTV system was not functioning on the night.