UK Foreign Secretary Miliband warns Iran's Foreign Minister Araghchi that the UK will not tolerate hostile acts on British soil, according to Sky News

Episodes in which Western governments accuse Tehran of hostile acts on their own territory, whether plots against dissidents, journalists or Jewish targets, have historically followed a familiar sequence: an attribution statement, possible expulsions or ambassador recalls, and in more serious cases designations of state bodies or fresh sanctions, with oil reacting only when the escalation touches supply or enforcement of existing crude sanctions rather than the diplomatic track itself. The Miliband-Araghchi channel is notable because direct ministerial contact between London and Tehran is relatively rare, and publicising the warning suggests the message is as much domestic and deterrent as bilateral. The tell for whether this becomes a market story is whether it stays rhetorical or produces concrete measures: asset freezes, IRGC-adjacent designations, or steps affecting Iranian crude flows, the last of which is the channel that transmits to Brent, freight and insurance costs. Diplomatic protests of this type have more often faded than escalated, but each has added incrementally to the case for tighter sanctions enforcement.