The Kenosha County Medical Examiner's Office responded to three suspected overdose cases on Saturday.
All three cases occurred within a 12-hour span and are suspected to be from cocaine and/or heroin use.
Among those deceased are two men and one women. The medical examiner says the age range of the individuals was between 20 and 50-years-old.
"It's highly concerning that we had three suspected overdose deaths within such a short time span," said Kenosha County Medical Examiner Patrice Hall. "I'm bringing this to the attention of the public so that they are aware of what's going on, and that treatment is available."
The Kenosha Fire Department also responded to two other, non-fatal overdose calls on Saturday.
The fire department's emergency medical services division chief says there have been an unusually high number of overdose cases in recent weeks. There were 43 overdose calls between April 20 and May 26. Thirty of these calls were opioid related, while most cases were not fatal.
In 2018, the Kenosha County Medical Examiner's Office processed 46 deaths due to toxicity. This is an average of less than one case per week.
For more information on opioid awareness and treatment, click here.