Breaking Information EmailsGet breaking information signals and particular studies. The scoop and tales that subject, delivered weekday mornings.SUBSCRIBEJan. 13, 2019, four:05 AM GMTVia Dennis RomeroA person died Saturday and 12 other people have been hospitalized in what government in Northern California described as a mass casualty overdose at the robust narcotic fentanyl.4 of the sufferers have been in severe situation, mentioned Mike O'Brien, a police captain in Chico, California."Definitely there\u2019s possible for extra fatalities," he mentioned at a information convention. "I need to emphasize that."Two cops who answered become in poor health and have been handled and launched from a clinic, O'Brien mentioned.Chico Hearth Division Leader Steven Standridge mentioned the officials have been "probably uncovered" to the drug, a man-made opioid regularly imported at the black marketplace from China and Mexico for use as a filler in heroin and different boulevard narcotics."It used to be a big, mass casualty incident for us," the fireplace leader mentioned in a information convention Saturday evening.O'Brien mentioned an individual affiliated with the home the place the overdoses happened referred to as 911 about nine a.m. Saturday to document the incident. Responding officials gave sufferers six doses of the opioid antidote naloxone whilst additionally administering CPR, he mentioned.Chico officials started sporting the antidote most effective final yr. "It unquestionably would had been a ways worse with out the reaction and dishing out of naloxone via Chico cops," O'Brien mentioned.It is not transparent what drug the fentanyl would possibly had been paired with, he mentioned, however his officials have most effective come throughout it when it used to be mixed with heroin."Each indication is that that this mass overdose incident used to be led to from the ingestion of a few type of fentanyl together with any other substance, even if this is but to be showed," O'Brien mentioned.It gave the impression the sufferers, believed to be ages 19 to 30, all knew every different, the police leader mentioned."The place of abode the place this incident happened is being handled as a hazmat website," he mentioned.The stipulations of the non-critical sufferers weren't launched, and the one that died used to be no longer known. O'Brien mentioned a narcotics process drive used to be looking to decide the supply of the medicine.Fentanyl is "50 to 100 instances stronger than morphine," in step with the Facilities for Illness Regulate. The drug has been blamed for a wave of overdose deaths around the country.Dennis Romero writes for NBC Information and is based totally in Los Angeles.