Retired FBI Agent Robert Levinson was kidnapped eight years ago this month while traveling to an Iranian island, making him one of the longest-held U.S. residents in history.
CNN reports that the FBI has increased the reward for information on Levinson, who also turned 67 this month, from $1 million to $5 million.
“Levinson traveled to Kish Island, Iran, on March 8, 2007, working on behalf of several large corporations, and his whereabouts, well-being and the circumstances surrounding his disappearance have been unknown since that time,” it said in a statement.
Secretary of State John Kerry urged Iran to cooperate.
“He has spent more than 2,900 days separated from those who love him, and is one of the longest held U.S. citizens in history. Year after year, the family has endured the pain of his absence. It is time for him to come home,” Kerry said.