Updated

A South Florida jury has acquitted a man on charges of attempting to illegally broker uranium ore shipments to Iran.

The jury in West Palm Beach federal court reached its verdict Monday in the case of Patrick Campbell of Sierra Leone after a weeklong trial. Campbell had faced up to 20 years in prison if convicted.

The case hinged on a Florida-based undercover U.S. agent who posed as a uranium buyer acting on behalf of Iran. Prosecutors said Campbell agreed to supply enough ore to yield 1,000 tons of purified uranium for nuclear fuel or weapons. Campbell denied the charges.

Campbell was arrested last August at a New York airport on his way to a meeting with the undercover agent. Two uranium samples were found in his luggage.