Skip to main content

Mexico: Stolen radioactive material found

By Rafael Romo. Nick Parker and Mariano Castillo, CNN
December 5, 2013 -- Updated 0058 GMT (0858 HKT)
STORY HIGHLIGHTS
  • There was less than 1.5 ounces of radioactive cobalt in the truck
  • The suspected thieves are still on the loose and could be sick
  • Authorities say they likely recovered all of the cobalt
  • Experts say cobalt-60 can also be used to make a dirty bomb

(CNN) -- A pair of thieves in Mexico may have stolen more than they bargained for when they targeted a truck this week.

The stolen vehicle was carrying delicate cargo -- a radioactive element used for medical purposes that also can be used to make a so-called dirty bomb.

Mexican authorities said they found the stolen truck and recovered likely all of the radioactive cobalt Wednesday in a remote area about 40 km (25 miles) away from where it was taken.

The suspected thieves are still on the loose, though authorities expect they could turn up at a clinic suffering symptoms of radiation exposure.

The container holding cobalt was found about a kilometer away from the truck and had been opened, said Juan Eibenschutz Hartman, head of Mexico's National Commission for Nuclear Security and Safeguards.

There was less than 40 grams (1.4 ounces) of the hazardous material inside.

Authorities are guarding the area and have set up a 500-meter perimeter around it, Eibenschutz said. They are evaluating whether any residents were exposed.

Cleaning up the area could take weeks, he said, because they don't have robotic equipment they would need to quickly collect the dangerous cobalt. They're coming up with a plan and considering asking for help from the International Atomic Energy Agency, the United States or Canada.

The IAEA announced the theft on Wednesday.

Mexican authorities told the IAEA that the truck, which was transporting cobalt-60 from a hospital in Tijuana to a radioactive waste storage center, was stolen Monday in Tepojaco, near Mexico City.

An early theory is that the thieves were unaware of what exactly they had taken.

"At the time the truck was stolen, the source was properly shielded," the IAEA said. "However, the source could be extremely dangerous to a person if removed from the shielding, or if it was damaged."

But Eibenschutz said the truck wasn't properly set up to transport the radioactive material, since it didn't have a GPS for tracking or other necessary equipment.

Cobalt-60 is used in radiotherapy and in industrial tools such as leveling devices and thickness gauges. Large sources of cobalt-60 are used to sterilize certain foods, as the gamma rays kill bacteria but don't damage the product, according to the U.S. Environmental Protection Agency.

If released into the environment, the radioactive material can harm people.

And experts consider cobalt-60 one of the "candidates" for making dirty bombs.

Bombs made with cobalt-60 "pose a threat mainly because even a fraction of a gram emits a huge number of high-energy gamma rays; such material is harmful whether outside or inside the body," according to a 2011 report by the Congressional Research Service.

In a speech last year, the IAEA director warned that such a dirty bomb "detonated in a major city could cause mass panic, as well as serious economic and environmental consequences."

Preliminary information suggests that the thieves did not know what the truck's cargo was when they stole it, said Jaime Aguirre Gomez, deputy director of radiological security at the National Commission for Nuclear Security and Safeguards.

The shielding that protects the cobalt-60 is designed so that the radioactive source is difficult to extract, Aguirre said. The casing is designed not to be opened or perforated easily.

The truck and its cargo went missing early Monday after the driver of the white 2007 Volkswagen truck and an assistant had stopped to rest at a gas station, local prosecutor Marcos Morales told CNN.

At around 1 a.m. Monday, a man armed with a handgun knocked on the passenger window. When the passenger rolled down his window, the gunman demanded the keys to the vehicle, Morales said.

Both the driver and his assistant were taken to an empty lot where they were bound and told not to move. They heard one of the assailants use a walkie-talkie type device or phone to tell someone, "It's done," Morales said.

Mexico alerted the IAEA to the theft, following international protocol, Aguirre said.

The U.S. Department of Homeland Security is assisting with the investigation into the stolen truck, Mexican authorities said.

The U.S. government has sensors at border crossings and sea ports to prevent radioactive materials from entering the country. This includes large stationary sensors designed to scan vehicles going through land border crossings as well as pager-size devices carried by agents.

Some of this equipment is sensitive enough that it has been set off by people who had recently undergone radiation therapy, according to a U.S. law-enforcement source.

According to the Congressional Research Service report, in Thailand in 2000, a disused cobalt-60 source was stored outdoors and bought by two scrap collectors, who took it to a junkyard where it was cut open.

Some workers suffered burn-like injuries, and eventually three people died and seven others suffered radiation injuries, the report says. Nearly 2,000 others who lived nearby were exposed to radiation.

CNN's Fidel Gutierrez, Arthur Brice, Catherine E. Shoichet, Carloo Perez, Evan Perez, Holly Yan and Christine Theodorou contributed to this report.

ADVERTISEMENT
Part of complete coverage on
October 28, 2014 -- Updated 1443 GMT (2243 HKT)
A captured fighter tells CNN's Ivan Watson: "They gave us drugs... that made you go to battle."
October 29, 2014 -- Updated 1331 GMT (2131 HKT)
A terminally ill woman who plans to take her own life checks off the last item.
October 30, 2014 -- Updated 2340 GMT (0740 HKT)
In a plot straight out of Hollywood, federal agents gain access to a suspected Triad boss' Vegas hotel room by pretending to fix the Internet connection.
October 31, 2014 -- Updated 0434 GMT (1234 HKT)
Was it only black and Latino men who harassed a woman in NYC? The filmmaker has found himself in a race controversy.
October 31, 2014 -- Updated 0317 GMT (1117 HKT)
The history of human rights often overlooks the struggles of gay people. This must change.
October 30, 2014 -- Updated 0115 GMT (0915 HKT)
Armed with Kalashnikovs and chanting for the dead comrades, women are among ISIS' most feared enemies. They are fighting for their families -- and now they are getting U.S. help.
October 28, 2014 -- Updated 1246 GMT (2046 HKT)
Lere Mgayiya put his best foot forward and set up a shoe-shine firm after his career plans fell flat.
October 30, 2014 -- Updated 0528 GMT (1328 HKT)
One Chinese drone manufacturer wants to take away the warmongering stigma of "drones."
October 30, 2014 -- Updated 0312 GMT (1112 HKT)
Sketcher Luis Simoes is traveling the world -- slowly. And he's packed his sketchbook.
October 28, 2014 -- Updated 2043 GMT (0443 HKT)
European states help North Korea's brutal treatment of its people by allowing luxury goods like cars and cognacs to evade sanctions, two experts say.
October 24, 2014 -- Updated 0345 GMT (1145 HKT)
Chinese leaders want less odd architecture built in the country.
October 31, 2014 -- Updated 1104 GMT (1904 HKT)
Each day, CNN brings you an image capturing a moment to remember, defining the present in our changing world.
Browse through images from CNN teams around the world that you don't always see on news reports.
ADVERTISEMENT