The FTSE 100 closes lower, with the index down 144.82 points, or 1.4%, to 10,219.11. Multiple reports attribute the decline primarily to weakness in bank stocks, indicating investors are adjusting positions in response to concerns about the potential impact of escalating tensions involving Iran. While details vary across coverage, the overall theme is that financials lead the downturn and that “Iran war” worry contributes to market risk sentiment. The FTSE 100’s fall reflects broad pressure on the market rather than a single company-specific event, with banks acting as the main drag at the close. Other sectors are not highlighted as the driver in the available reports, and the coverage focuses on the final index move and the connection between the drop and uncertainty around geopolitical developments. The index’s closing level is the key shared figure across sources.