Authorities in the Philadelphia suburbs are charging six people for four opioid overdose deaths that have occurred there since August.
Montgomery County prosecutors said Thursday they have charged five defendants with drug delivery resulting in death and the sixth with involuntary manslaughter.
Five of the defendants have been arrested and one is being sought by police.
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Prosecutors say one of the victims died of an overdose while incarcerated in the county jail.
The drug combinations varied, but autopsies found that all of those who died had fentanyl in their systems.
Montgomery County District Attorney Kevin Steele says more than 200 people have died from overdoses in his county since the start of last year.