DUBAI  - The United Arab Emirates and Egypt have launched a $20 billion investment platform for economic and social projects, the crown prince of Abu Dhabi Mohammed bin Zayed al-Nahyan said on Twitter on Thursday.

Egypt's President Abdel Fattah al-Sisi began a visit to the UAE on Wednesday.

(Writing by Lisa Barrington; editing by Jason Neely) ((lisa.barrington@thomsonreuters.com;))