(CNN) Iran's foreign minister called for the United States to release Press TV anchor Marzieh Hashemi in comments carried on the website of state-run IRNA news.

Iranian state-funded Press TV reported Wednesday morning that Hashemi, a journalist born in the United States as Melanie Franklin, was detained in the St. Louis, Missouri international airport on Sunday.

She was transferred to a detention facility in Washington, DC, according to Press TV, Iran's English-language service.

The Federal Bureau of Investigation declined to comment on Hashemi's detention.

Hashemi traveled to the United States to visit her family, Iranian Foreign Ministry spokesman Bahram Qasemi said.

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