CAIRO- Egypt's election commission said on Wednesday that a referendum on constitutional amendments - including potentially allowing President Abdel Fattah al-Sisi to stay in office until 2030 - will take place on April 20-22.

A second amendment would provide for setting up an upper parliamentary chamber.

(Reporting by Ahmed Tolba and Nadine Awadalla, writing by Sami Aboudi; editing by John Stonestreet) ((Sami.Aboudi@thomsonreuters.com; +20223948181;))