DUBAI- Qatar's central bank sold 500 million riyals ($137.36 million) of Treasury bills with maturities of three, six and nine months, it said on Tuesday.

It sold 200 million riyals of three-month bills at a yield of 2.18 percent, 200 million riyals of six-month at 2.48 percent and 100 million riyals of nine-month at 2.75 percent. ($1 = 3.6400 Qatar riyals)

(Reporting by Katie Paul, writing by Hadeel Al Sayegh, Editing by William Maclean) ((mailto:Hadeel.AlSayegh@thomsonreuters.com; +971566883310;))