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According to WRCB, animal shelter workers said temperatures reached nearly 100 degrees in the box and that three female puppies were suffering from heat exhaustion and covered in urine.

The trio are thought to be between nine and 11 weeks old.

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According to WTVC, the animal care center said the dogs looked to have been neglected for some time.

The McKamey Animal Center is offering a $4000 reward, as of Thursday morning, for information leading to an arrest, according to the center's director.  They are also investigating leads.

Watch WRCB's story below or click here.