Spanish media on September 18 centered on the Spanish Prosecutor General's authorization to investigate alleged "crimes" and "genocide" committed by Israel in Gaza. This development began to emerge in the early morning and gained significant traction throughout the day, with multiple outlets reporting on the decision. Concurrently, discussions continued regarding Spain's regional financing models and income tax transfers. In the afternoon, reports noted an Israeli minister's envisioning of a "boom" in Gaza post-war, contrasting with the ongoing investigations. By the evening, Prime Minister Sánchez, while meeting with Friedrich Merz, publicly stated that terrorism should not be fought by punishing populations, and that Israel's strategy was mistaken, further highlighting Spain's stance on the conflict.