A Dubai-based businessman has become the fourth Iranian American to be arrested by Iran's security forces and imprisoned in Tehran, several newspapers reported Thursday.
Siamak Namazi, believed to be in his early 40s, was arrested earlier this month while visiting a friend in Tehran, a family friend told the Washington Post. It was not immediately clear whether any charges have been brought against Namazi. The friend asked not to be identified.
The State Department declined to confirm Namazi's arrest.
"We're aware of recent reports of the possible arrest in Iran of a U.S. citizen. We're looking into these reports and don't have anything further to provide at this...