The International Atomic Energy Agency announced the theft today. The truck was stolen on Monday in Tepojaco near Mexico City as it was transporting the cobalt-60 teletherapy source from a hospital in Tijuana to a radioactive waste storage center.
According to experts, Cobalt-60 can be used to make a dirty bomb. However, the deputy director of radiological security at the National Commission for Nuclear Security and Safeguards, Jaime Aguirre Gomez, said that it is unlikely the thieves were aware of the truck's radioactive cargo.
Mexican authorities are currently searching for the truck and its contents, with assistance from the U.S. Department of Homeland Security and an offer of assistance from the IAEA.