(Updates action 30-year action)

NEW YORK (Reuters) - U.S. 30-year Treasury bondprices turned flat Thursday, paring earlier losses, promptedby a late wave of month-end buying tied to expected changes toportfolio benchmarks.

The 30-year bond , the longest governmentmaturity, last down 6/32 in price. Its yield was 3.69 percent,up from 3.68 percent late Wednesday.

(Reporting by Richard Leong)