[…]

The medical teletherapy device had been inside a steel-reinforced wooden box, but the protective container was opened and the radioactive waste was separated from the equipment in the town of Hueypoxtla, 70 kilometers (43 miles) north of the capital.

The dangerous material was found about one kilometer (0.6 miles) from the truck, which the driver said was stolen by two gunmen at a service station on Monday.

The National Commission for Nuclear Safety and Safeguards (CNSNS) said a family found the open medical device and brought it inside their home. They were also near the radioactive source.

“We will have to keep this family under medical watch for the sole reason of being near a certain distance from the source,” CNSNS operations director Mardonio Jimenez told Milenio television, without specifying how many people were in the family.

Authorities have warned that whoever removed the radioactive material by hand was probably contaminated and could soon die. Authorities are still looking for the thieves.

[…]

Aren’t there international symbols for ‘touch this and you will die’? Couldn’t a few stickers have been applied?