Iran's semiofficial Fars news agency says Iranian security has detained two Kuwaiti citizens in southwestern Iran for suspected espionage activities.
Fars quoted Bahram Ilkhaszadeh, governor of Abadan, a town close to Kuwait, as saying that Iran's security agents detained the two on possession of "spying equipment."
The news agency did not provide further details.
Iran and Kuwait have accused each other in recent years of running spying rings in the other's country.
Kuwait in the past accused Iran of masterminding an espionage ring that included surveillance of U.S. and Kuwaiti military sites. Iran denied the claims.
The two neighbors agreed in May to allow the return of ambassadors recalled earlier in a dispute over an alleged Iranian spy ring.