Mexico issues alert after small radioactive theft

Mexican authorities have issued an alert for local officials to be on the lookout for an amount of radioactive material stolen by a group of armed thieves on Sunday night.

The Interior Department says a pickup truck carrying the iridium was stolen and later found.

But the pen-point-sized radioactive material has not been recovered.

It is enclosed in a casing about the size of a pen, used in an industrial inspection device.

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