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A U.S. Marine veteran who was jailed in Iran spoke out for the first time just moments ago following his release over the weekend in a prisoner swap.

Addressing the media from the U.S. military hospital in Landstuhl, Germany, Amir Hekmati was asked by Fox News correspondent Greg Palkot whether his Marine training kicked in during his time in prison. 

"I think so. I didn't want to let my fellow Marines down and the reputation of the Marine Corps. So I tried my best to keep my head up withstand all the pressures that were put upon me," he said.

Hekmati said he endured "inhumane and unjust" treatment that he vowed to elaborate on at a later date.

Hekmati said when he learned of all the U.S. Marines supporting him it gave him the strength to get through the "very difficult times."

"Semper Fi to all the Marines out there," he declared.

Hekmati was jailed in a notoriously dangerous Iranian prison for four years. The Iranian-American was born in Arizona but held dual citizenship when he flew to Iran to visit his dying grandmother.

He was arrested and charged with spying for the United States government. He was sentenced to death, but that sentence was reversed.

Hekmati was then convicted of a lesser charge and sentenced to 10 years in prison.

Watch Hekmati's remarks above. 

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