Saudi King Abdullah bin Abdul Aziz Al Saud on Saturday issued a royal decree on the crown prince just moments before leaving for Egypt .
The official Saudi Press Agency reported that King Salman Anab, Crown Prince Prince Mohammed bin Salman, in the management of state affairs and the welfare of the people during the period of his absence from the Kingdom .
The Saudi monarch arrived in Egypt and met Egyptian President Abdel Fattah al-Sisi before heading the Kingdom's delegation to the summit of the League of Arab States and the European Union, which begins on Sunday and will last two days .
At the first summit in Sharm el-Sheikh, Arab League member states and the European Union are considering a number of issues including security, migration and economic development .
The summit will be attended by a number of Arab and European leaders, as well as European Council President Donald Tusk and European Commission Jean-Claude Juncker.