The warning was delivered through a flurry of ‌high-level diplomatic contacts after President Donald Trump threatened late last month to strike Iran's energy network and infrastructure, the sources said.

Two senior Iranian officials, two Gulf sources and a senior regional diplomat with knowledge of the discussions said Iranian Foreign Minister Abbas Araqchi spoke with his Saudi, Turkish and Qatari counterparts, as well as Pakistan's army chief. All spoke on condition of anonymity because of the sensitivity of the matter.

urged Washington's Gulf allies to dissuade Trump from launching renewed strikes, the senior diplomat said, warning that any attack on Iran would prompt retaliation against US assets and energy facilities across the ​Gulf.