The Korean won weakens sharply against the US dollar on Monday, reaching its weakest level in about 17 years amid foreign selling of local shares and renewed concerns about conflict in the Middle East. In afternoon trading, the won is quoted at 1,545.2 won per dollar at 3:30 p.m., down 13.2 won from the previous session, after touching 1,539.7 won earlier in the day. The currency opens at 1,536.5 won per dollar. Reports that the United States and Iran exchange strikes after an Iranian projectile hit a cargo ship in the Strait of Hormuz last week initially add pressure. Later, the won recoups some losses on reports that Washington and Tehran may renew talks. Despite this, analysts say ongoing foreign sell-offs of Korean stocks are likely to keep the won under pressure. Foreign investors are net sellers of local equities, with one source citing net sales of 7.7 trillion won (about $4.9 billion) on the day and another citing 1.3 trillion won earlier in the morning. The local benchmark Korea Composite Stock Price Index falls more than 2% to 8,253.86 points as of 9:52 a.m. The dollar stays supported as investors price in potential US Federal Reserve rate hikes.