Terror Ship

When an empty yacht is spotted drifting at sea, three people board it and, surmising that the ship was used for smuggling, they search the vessel but find nothing. Soon they begin to develop radiation burns on their arms, leading to the discovery of stolen uranium hidden in the ship's mast. They summon the police, but before the cops arrive, the uranium thieves return and during an open-sea chase the yacht explodes, killing the criminals. An interesting premise ineptly handled.