CAIRO - Egypt's central bank said it sold 5 billion Egyptian pounds ($843 million) in domestic treasury bills on Sunday, the same amount it was seeking (CBEY). The bank sold 1.5 billion pounds of 91-day T-bills at an average yield of 11.349 per cent, down from 11.465 per cent at last week's auction. The bank also sold 3.5 billion pounds of 273-day T-bills at an average yield of 12.257 per cent, up from 12.162 per cent at last issue on March 1. ($1=5.9296 Egyptian Pound)