The Latest: Man arrested in overdose deaths of 3 at party Police say a man has been arrested on suspicion of providing a white powdery substance tainted with fentanyl in Pittsburgh, leading to the death of three men

PITTSBURGH -- The Latest on an apparent mass drug overdose (all times local):

3:45 p.m.

Police say a man has been arrested on suspicion of providing a white powdery substance tainted with fentanyl at an after-party in Pittsburgh, leading to the death of three men.

Pittsburgh Public Safety spokesman Chris Togneri says Peter Rene Sanchez Montalvo was arrested Monday on federal charges of distributing a controlled substance resulting in death and serious bodily injury.

Authorities say Montalvo goes by the name Carlos. No information on an attorney for him was available.

Togneri says he had been at a bar earlier and invited some patrons to an after-party at an apartment where he'd been staying.

Federal prosecutors say the partygoers believed the white substance was cocaine. The medical examiner's office has initially determined it contained the powerful opioid fentanyl.

It's unclear who alerted emergency authorities, who arrived at the building to find several people dead or in need of medical help.

———

8:30 a.m.

Authorities have released the names of three men who died in an apparent mass drug overdose at a Pittsburgh apartment building that left four other men hospitalized.

All were found early Sunday. They apparently used narcotics at the same time and in the same place, but authorities haven't specified which drug or combination of drugs they took.

Three men — 32-year-old Rubiel Clemente-Martinez, of Columbus, Ohio; 38-year-old Josue Soberal Serrano, of Carthage, Missouri, and 32-year-old Joel Pecina, 32, of Coraopolis — were pronounced dead at the scene.

Authorities say all the victims were wearing orange paper wrist bands. Police determined the men initially went to a venue together, then headed to the apartment where they overdosed.

One man remained hospitalized Monday in critical condition, while three others were in stable condition.