Four Lyon County overdoses across four days last week was highly unusual for the community, according to Sheriff Brent White.

White said that three individuals between Jan. 13 and Jan. 17 died of apparent drug overdoses in Lyon County. It is believed that a fourth individual who had been hospitalized following an overdose during that period may died this week. Law enforcement believes all four cases could be tied to a "bad batch" of synthetic pills brought into the area.

"We don't ever have four people OD in Lyon County over that time period," White said.

The victims were all males, ranging in age from 37 to 59.

A 57-year-old man was the first to die on Jan. 13.

The sheriff said that when medical help arrived at the man's location, he was already dead. On that same day, a Caldwell County man believed to have been with the deceased man just hours earlier was also found dead of an apparent overdose.

The third fatality came Friday. It was a 37-year-old. Another local man who lived in the vicinity of Friday's victim was hospitalized last week and believed dead at press time, though the sheriff had no confirmation of that.

White said the cases may be connected, and pills seem to be a common element.

"At this point, we just don't know for sure," he said.

However, White said a recent string of overdoses in a nearby county appear similar to what happened last week in Lyon County.

In August, Marshall County authorities tied multiple overdoses to Xanax pills possibly laced with fentanyl, a synthetic opioid pain reliever. Because the drugs are obtained illegally, users have no way of knowing what the pills contain. Some may even come from abroad in places like China.

"The pills are not what they are supposed to be," White warned.