BLOOMINGTON, Ind. -- A rash of overdoses in Bloomington that has left at least one person dead is being linked to a particularly potent synthetic heroin mixed with spice.

The Bloomington Police Department responded to 10 overdoses between the afternoon of June 21 and the evening of June 22.

Investigators say all 10 of those overdoses have been linked to a tan colored heroin and spice or synthetic cannabinoid. Police say one of those overdoses resulted in a death.

Investigators are still working to determine the source of the drugs and what is making them so potent.

Anyone with information about the drugs or where they may be coming from should contact the Bloomington Police Department at 812-349-3307.

The overdoses occurred at the following locations, and times: