The Pakistan Stock Exchange (PSX) came under heavy selling pressure on Tuesday as renewed uncertainty over a potential US-Iran deal pushed oil prices higher and weighed on investor sentiment. The benchmark KSE-100 Index fell more than 1,100 points in early trading before recovering slightly. By 2:45pm, the index was trading at 180,287.92 points, down 1,022.36 points, or 0.56%, from the previous close. The uncertainty also triggered a sharp rise in global oil prices. Oil prices had already surged by more than 5% on Monday after Trump responded to Iran’s conditions for a peace agreement with demands for compensation.