London's FTSE 100 index dropped 1.31% on Wednesday's close as worsening conflict in the Middle East and fuel shortage concerns pushed Brent crude past $100 a barrel for the first time since July.
Following an Iranian ballistic missile attack targeting a US Navy warship, US Central Command confirmed that American forces retaliated by destroying five Iranian tankers. Iranian state television broadcast an Islamic Revolutionary Guard Corps warning ordering tankers near Kuwaiti and Bahraini piers to evacuate immediately or face being targeted. Iranian forces also launched an overnight missile strike against an air base in Jordan.
Meanwhile, the UK government is readying primary legislation requiring technology platforms and app developers to enforce device- and app-level safeguards to block children from accessing and sharing explicit content. Secretary of State for the Department for Digital, Culture, Media and Sport Lisa Nandy noted that cross-departmental efforts with Apple and Google have yielded "meaningful" operating system-level protections against nude image sharing, but said initial commitments "do not meet the scale of this crisis."
In corporate news, Aberdeen Group (ABDN.L) appointed Torbjörn Magnusson as chair designate with immediate effect. Magnusson, former chair of If P&C Insurance, will succeed interim Chair Jonathan Asquith, subject to regulatory approval. The stock was up 0.40%.
HSBC (HSBA.L) declined 1.63% after digital media portal Finanz-Szene reported that the lender will shut down its HSBC Transaction Services business in Düsseldorf, Germany, resulting in the loss of 300 remaining jobs at the unit.
International Consolidated Airlines Group (IAG.L) fell 2.40% after its unit British Airways said it would cancel more than 190 flights following Tuesday's disruption caused by a technical issue with UK air traffic control. The airline said it is working to build a new schedule to operate as many flights as possible and resolve disruption for affected passengers.
Glenstone REIT's takeover proposal of 0.714 pound sterling per share for Alternative Income REIT (AIRE.L) became unconditional after it received acceptances from shareholders representing 22.78% of the London-listed real estate investment trust as of Tuesday. Alternative Income REIT decreased 2.61% in the closing trade.