Egypt's President Abdel Fattah El Sisi sent a cable of greetings to Sudanese President Omar al-Bashir on the approach of the holy fasting month of Ramadan.
Sisi wished all the Sudanese people health, prosperity and stability.
If Cameron secured a deal which "redefined the terms of Britain's membership", then 42 percent would likely vote to remain in the EU, with 36 percent likely to vote the other way.
But just 18 percent thought it likely that Cameron would be able to secure "satisfactory" terms, with 55 percent saying it was quite or very unlikely.