RICHMOND (WSLS 10) - Virginia police say three overdose deaths were reported in the northern Shenandoah Valley.
Two deaths happened on Friday in Frederick County and the third in Clarke County.
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The deaths raise the tally of fatal overdoses this year to five.
Police say Carroll County, Maryland reported seven overdoses within hours of each other on Friday.
Agents with the Northwest Virginia Regional Drug and Gang task force are increasing efforts to identify the source of the drug batch to prevent additional overdoses.