* KOSPI falls, foreigners net sellers
* Korean won weakens against dollar
* South Korea benchmark bond yield rises
SEOUL, Sept 27 (Reuters) - Round-up of South Korean financial markets:
** South Korean shares fell for a fifth consecutive session on Wednesday, tracking Wall Street's losses as investors weighed prospects of interest rates staying higher for a longer period of time. The won weakened to a 10-month low, while the benchmark bond yield rose.
** The benchmark KOSPI fell 11.91 points, or 0.48%, to 2,451.06 by 01:02 GMT.
** South Korean markets will be closed for local holidays from Sept. 28 through Oct. 2. ** U.S. borrowing costs have risen sharply in the past 18 months as the Federal Reserve ratcheted up interest rates to bring down inflation.
** Among index heavyweights, chipmaker Samsung Electronics was flat and peer SK Hynix lost 1.30%, while battery maker LG Energy Solution slid 1.05%.
** Hyundai Motor added 0.05% and sister automaker Kia Corp lost 0.49%, while search engine Naver and instant messenger Kakao were down 0.90% and 0.23%, respectively.
** Of the total 928 traded issues, 295 shares advanced, while 560 declined.
** Foreigners were net sellers of shares worth 11.9 billion won on the main board.
** The won was quoted at 1,354.9 per dollar on the onshore settlement platform, 0.47% lower than its previous close at 1,348.5.
** In offshore trading, the won was quoted at 1,355.2 per dollar, down 0.2% on the day, while in non-deliverable forward trading its one-month contract was quoted at 1,352.6.
** The KOSPI has risen 9.60% so far this year, but lost 4.2% in the previous 30 trading sessions.
** The won has lost 6.7% against the dollar so far this year.
** In money and debt markets, December futures on three-year treasury bonds were unchanged at 103.00.
** The most liquid three-year Korean treasury bond yield rose by 1.9 basis points to 3.900%, while the benchmark 10-year yield rose by 2.1 basis points to 4.063%. (Reporting by Cynthia Kim; Editing by Subhranshu Sahu)