ISTANBUL- Turkey's Treasury on Tuesday said it issued a 3.2 billion lira ($597 million) sukuk, rather than the 2 billion it had initially planned, citing strong demand from investors.

($1 = 5.3583 liras)

(Reporting by Ali Kucukgocmen; Editing by David Dolan) ((david.dolan@tr.com; +90 212 350 7046; Reuters Messaging: david.dolan.thomsonreuters.com@reuters.net))