https://cdnph.upi.com/ph/st/th/1751784541758/2026/i/17845420355234/v1.5/Seoul-stocks-dip-over-4-pct-on-extended-chip-rout-Mideast-tensions.jpg" /> South Korean stocks closed more than 4 percent lower Monday, as artificial intelligence (AI) woes resurfaced amid escalating tensions in the Middle East.