Iranian Foreign Ministry says the attack on holy sites, especially Mecca, is a condemned act, Al Arabiya reports

Mecca carries particular weight here, since any strike framed as touching Islam's holiest sites tends to collapse the usual Gulf fault lines and rally broad regional and international opinion against whoever is blamed. The operative questions are who carried out the attack, whether attribution follows, and whether the condemnation is paired with any denial of involvement, since in past episodes of regional escalation the speed and channel of disavowal have been read as tells in themselves. For oil, the established pattern is that perceived threats to Gulf stability price through the prompt end of the crude curve, freight and insurance costs, before any physical disruption is confirmed, and that rhetoric alone has tended to fade without follow-through unless infrastructure or shipping is actually hit. Worth watching are official responses from Riyadh and other Gulf capitals, any claim of responsibility, and whether back-channel escalation or de-escalation language follows from the other principals.