Health authorities say that six people being checked for possible radiation exposure have been released from the hospital but remain under detention.
Hidalgo state Health Department says in a statement that the six men, ages 16 to 38, were given medical attention and all are reported to be in stable condition.
A spokeswoman with Hidalgo's Health Department says that only the 16-year-old showed signs of radiation exposure and that he too is in good health.
An official with federal prosecutors says the men will be turned to investigators for questioning in the theft of highly radioactive cobalt-60.
Both officials spoke Friday on condition of anonymity because they aren't allowed to discuss the ongoing investigation.
Cool through Tuesday with wind and periods of rain, then a warming trend.
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