Tehran has condemned Kuwait for sentencing two Iranians, a Kuwaiti, and a stateless man to life in prison for spying for Iran.
On May 28, Kuwait's appeals court reduced a death sentence on the two Iranians and the Kuwaiti to life and upheld the stateless man's sentence.
Iranian Foreign Ministry spokesman Ramin Mehmanparast on May 29 said “all these charges are false and the sentences handed down are unacceptable."
The two Iranians and the Kuwaiti worked for the Kuwaiti army at the time of their arrest in 2010.
They were accused of passing information on the Kuwaiti and U.S. military in the Gulf emirate to Iran's Revolutionary Guards -- an accusation both Tehran and the defendants deny.
The case will now go to Kuwait's supreme court, where a final verdict will be issued.
Based on reporting by AFP