Officials work at a dealing room in Hana Bank headquarters in central Seoul, Monday. Yonhap

Seoul stocks opened lower Monday, led by declines in major semiconductor makers, amid the escalating Middle East tensions.

The benchmark Korea Composite Stock Price Index (KOSPI) fell 35.41 points, or 0.52 percent to 6,785.19, as of 9:19 a.m.

On Friday (U.S. time), major U.S. stock indexes closed lower as concerns mounted over artificial intelligence (AI) sectors, such as chipmaking.

Sandisk and Micron led the decline, both falling by more than 8 percent.