WASHINGTON — U.S. Secretary of State John Kerry has renewed calls for Iran's government to release U.S. citizen Saeed Abedini, a Christian pastor serving an eight-year sentence on religion-related charges.

“The United States respectfully asks the government of the Islamic Republic of Iran to work cooperatively with us in our efforts to help U.S. citizens,” Secretary Kerry said in an Aug. 28 news release, to “return to their families after lengthy detentions.”

“These men belong at home with those who love them and miss them,” Kerry said.

In his statement, Kerry also asked for the release of Amir Hekmati, a U.S. citizen imprisoned on espionage charges, and for help in finding U.S. citizen Robert Levinson, who went missing in 2007.

The secretary of state explained that, as of Sept. 26, “Mr. Abedini will have spent a year in detention in Iran. He was sentenced to eight years in prison on charges related to his religious beliefs.”

Born in Iran, Abedini converted to Christianity in 2000 and obtained U.S. citizenship after marrying a U.S. citizen. The pastor lived with his wife and their two children in Idaho. He was arrested in 2012 during a visit to Iran, where he was working with non-religious orphanages in the country.

Until 2009, Abedini worked with house churches in Iran, an action that drew opposition from the government, despite being technically legal. As a result of the government's objection, Abedini decided to work with the non-religious orphanages.

Following his arrest, Abedini was charged with posing a threat to national security for his earlier work with the house churches. He is now serving an eight-year sentence in Iran’s Evin Prison, and he has reportedly endured brutal beatings, attempts to make him renounce his faith and insufficient medical attention.

On Aug. 26, it was announced that Abedini’s appeal for a reduction in his sentence’s length was denied.

Kerry noted that Hassan Rouhani, the newly elected Iranian president, who took office Aug. 3, “has shared in his speeches and interviews over the past few months his hope and vision to improve the government of the Islamic Republic of Iran’s relationship with the world.”

Kerry asked Rouhani to act on this vision and urge the government to release the prisoners, “so that they may be reunited with their families as safely and as soon as possible.”

Naghmeh Abedini, Saeed Abedini’s wife, said in a statement that she is “very thankful for the statement that Secretary of State John Kerry made to Iran regarding Saeed's immediate return to our family.”

She added that she hopes “that the State Department is truly willing to explore all avenues to secure my husband’s release.”

She mentioned, however, that while “I am pleased with this development,” she hopes that President Obama will “speak out on this very critical human-rights issue and let the Iranian government and the world know that religious freedom is still a top priority for our government.”

Abedini said, “President Obama must demonstrate that America will not stay silent in the face of religious persecution, nor will it let an American citizen waste away in an Iranian prison simply because he chose to follow Jesus.”