Pakistan Stock Exchange (PSX) opened new business week on a negative note as tensions heightened in Middle East.
In opening session, the KSE-100 index plunged 855.34 points to reach 173,107.47 points, reflecting a negative change of 0.49 percent compared to previous close of 173,962.81.
Meanwhile, oil prices rose more than 2 percent after Iran and the US traded strikes and Israel ordered troops to move further into Lebanon in the battle with the Tehran-backed Hezbollah militant group.
U.S. crude futures rose $2.29 or 2.62% to $89.65 a barrel as of 0436 GMT. Brent futures rose $2.05 or 2.25% to $93.17 a barrel.