Security Alert: Americans Abroad Advised Against Iran-Linked Risks
Alert urges Americans abroad, especially in Middle East, to exercise caution against Iran-linked threats.
Conflict began on Feb 28, killing at least 1,300 people.
Incidents include IED at U.S. Embassy in Oslo, gunfire in Toronto, Karachi protests breach, and Austin bar shooting.
Americans advised to follow embassy/consulate guidance.
Airspace closures may disrupt travel.
State Department did not identify specific threat.
Col Ebrahim Zolfaqari warned Iran would retaliate against U.S.-linked fuel/energy infrastructure.