WASHINGTON (AP) — An outraged White House wants the Cuban government to immediately release an American international development worker sentenced to 15 years in prison for crimes against the state.

National Security Council spokesman Tommy Vietor says the prison term “adds another injustice” to Alan Gross’s ordeal.

READ MORE: Baltimore County Police Chief Reacts To Vote Of No Confidence

Vietor says Gross, a Maryland native arrested in December 2009 while on a U.S.-backed democracy-building project, has already spent too many days in detention and “should not spend one more.”

READ MORE: Maryland Offers "Full Support" After 19 Children, 2 Adults Killed In Texas Elementary School Shooting

The Obama administration and Gross’ family say he was working to improve Internet access for Cuba’s Jewish community. Havana accused Gross of working on a “subversive” program.

He was found guilty by a Cuban court on Saturday.

MORE NEWS: A Mass Shooting In Texas Has Reignited A Nationwide Conversation On Gun Violence

The court said the program Gross worked on showed that the U.S. still seeks to overthrow the Cuban government.
(Copyright 2011 by The Associated Press. All Rights Reserved.)