ISTANBUL- Turkey's Treasury said on Wednesday it borrowed $3.5 billion in a two-tranche eurobond issue and received more than $15 billion demand.

The yield to investor on the 5-year tranche was 4.90%, while that on the 10-year tranche was 5.95%, the Treasury said. 

The issues received demand from more than 300 investors, it said, adding that 35% was sold to investors from Britain, 33% to those from the United States and 16% to those from other European countries, it added.

(Reporting by Ali Kucukgocmen Editing by Daren Butler) ((daren.butler@tr.com; +90-212-350 7053; Reuters Messaging: daren.butler.thomsonreuters.com@reuters.net))