CAIRO- Average yields on Egypt's six-month and one-year treasury bills fell at an auction on Wednesday, central bank data showed.

Yields on the 182-day bill dropped to 18.434 percent from 19.110 percent at the last sale. Yields on the 357-day bill fell to 17.868 percent from 18.709 percent.

Total foreign holdings in Egyptian securities stood at 300 billion Egyptian pounds ($17 billion) as of Sept. 19, the head of public debt at the finance ministry, Sami Khallaf told Reuters.

($1 = 17.6370 Egyptian pounds)

(Reporting by Arwa Gaballa and Eric Knecht; Editing by Mark Potter) ((arwa.gaballa@thomsonreuters.com; +20 2 2578 3290;))