Riyadh - If an investigation shows that last week's attack on Saudi Arabian oil facilities was launched from Iranian territory, the kingdom would consider it an act of war, but Riyadh is currently seeking a peaceful resolution, a senior Saudi official said.
"We hold Iran responsible because the missiles and the drones that were fired at Saudi Arabia...were Iranian-built and Iranian-delivered," Minister of State for Foreign Affairs Adel al-Jubeir told CNN late on Saturday.
"But to launch an attack from your territory, if that is the case, puts us in a different category... this would be considered an act of war."
Jubeir told reporters earlier that Riyadh was awaiting the results of a probe, which it has invited international investigators to join, into the September 14 strikes which initially halved Saudi production, the largest-ever assault on oil facilities in the world's top oil exporter.
Riyadh has rejected a claim by Yemen's Iran-aligned Houthi movement that it carried out the strikes. Washington has blamed Iran, which denies any involvement.