A country-wide alert has now been eased after a stolen shipment of extremely dangerous radioactive material has been recovered.
The stolen shipment was found this afternoon. Just hours after two armed men tied up the driver, taking that truck with radioactive material just outside Mexico City.
The international atomic energy agency says the truck was carrying cobalt-60. Used to treat cancer, but can potentially be used to make a dirty bomb.
There are questions over whether the thieves knew what they were stealing. Luckily, officials say nobody was in danger.