Yields on Egypt's three-month and nine-month treasury bills rose at Sunday's auction, the first since the International Monetary Fund agreed in principle to grant the country a $12 billion three-year loan facility, data from the central bank showed.

The average yield on the 91-day bill rose to 14.154 percent from 14.089 percent at the last auction on August 7. The 266-day bill rose to 15.889 percent from 15.730 percent at a similar auction a week ago.