RIYADH, Oct 24 — Saudi Arabia’s civil defence agency broadcast warnings of “potential danger” for four of its western provinces, including that of Mecca, home to Islam’s holiest city, on Friday, without saying why.

The alerts, which also covered the major Red Sea city of Jeddah, nearby Taif and the coastal oil hub of Yanbu, were all rescinded minutes later.

Residents were instructed to “proceed to the nearest safe place” by the agency. The agency also repeated a legal warning against sharing images or information related to “countering missiles and drones”.

The Gulf kingdom has come under repeated attack from Yemen’s Iran-backed Houthis in recent weeks as part of the latter country’s revived civil war.