The United States is renewing calls for Cuba to release imprisoned U.S. contractor Alan Gross, who on Saturday will have served two years behind bars on state security charges.

White House spokesman Jay Carney Friday called for Havana to free the contractor immediately, saying it is “past time” for Gross to be allowed to return home to his family, where he belongs.

State Department spokesman Mark Toner also made similar comments in a statement on Gross.

“I did want to note that tomorrow, Alan Gross will begin his third year of unjustified imprisonment in Cuba. He was arrested on December 3, 2009, and later given a 15-year prison sentence by Cuban authorities for simply facilitating connectivity between Havana's Jewish community and the rest of the world.”

Toner described Gross as a 62-year-old husband, father and dedicated professional with a long history of providing assistance and support to underserved communities in more than 50 countries.

Gross was arrested for bringing communications equipment into Cuba while working for a private firm contracted with the U.S. Agency for International Development.

The company says he was working for USAID's Cuba democracy program, bringing Internet access to Cuba's Jewish community. Gross has said his actions were not intended to be a threat against the Cuban government.

Gross's wife, Judy, said in an interview with VOA that she recently visited her husband in prison and found him depressed and angry. Judy Gross says the U.S. government could be doing more to gain her husband's release and she wants the United States and Cuba to “work something out.”

Besides Judy Gross, Alan Gross has received visitors such as former U.S. president Jimmy Carter.

The latest visitor was Reverend Michael Kinnamon, the general secretary of the U.S. National Council of Churches. He discussed his meeting at a press conference in Havana Friday.

“We met with Alan Gross for a considerable amount of time: 45 minutes or an hour. We talked about his sense of certainly being unjustly accused.”

Kinnamon also said he was not there to pass judgment on the validity of the case.

Several weeks ago, former New Mexico governor Bill Richardson visited Cuba but failed to secure Gross's release.

The case has further strained relations between the United States and Cuba, which do not have formal diplomatic ties. A decades-old U.S. embargo against Cuba remains in effect, and U.S. President Barack Obama says it will stay in place until Havana takes steps toward democratic reforms.

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