Egypt has obtained $23 billion in aid from Saudi Arabia, the United Arab Emirates and Kuwait in the 18 months since Islamist President Mohamed Morsi was ousted, Investment Minister Ashraf Salman said on Monday.

Speaking at a business conference in Dubai, Salman said the aid included oil shipments, cash grants and deposits in Egypt's central bank.

The three wealthy Gulf governments, deeply opposed to Morsi's Muslim Brotherhood group, ramped up aid to Egypt after his ouster and are spending heavily to try to ensure the success of current President Abdel Fattah al-Sisi.