3 dead in New Mexico and first responders treated for exposure to unknown substance, officials say

Three people are dead and more than a dozen first responders had to be quarantined and assessed Wednesday for possible exposure to an unidentified substance after being called to a suspected drug overdose at a rural New Mexico home, authorities said.Four people initially were found unresponsive inside the Mountainair home east of Albuquerque, New Mexico State Police said. Three died, while the forth was being treated at an Albuquerque hospital, police said. Their names weren’t released.Related video above: Hazmat team called after woman’s body found in PennsylvaniaFirst responders who arrived at the home were exposed to the substance and began experiencing symptoms, including nausea and dizziness, authorities said.Antonette Alguire, a volunteer firefighter in Mountainair, helped perform CPR on a woman outside the home and watched as EMTs and firefighters started coughing, vomiting and becoming dizzy at the heliport, she said. Alguire said the experience was scary, even though she didn’t go inside and didn’t experience any symptoms.She wondered if first responders might have to do more to protect themselves in the future.“It’s getting to that point where we just have to live in fear, even saving lives,” she said.Investigators are working to identify the substance. Mountainair Mayor Peter Nieto said he saw drugs at the scene and pointed to that as a possible factor in the deaths. He said the health issues people experienced were not related to carbon monoxide or natural gas exposure.Nieto told Hearst sister station KOAT some of the deceased worked in town and were discovered after failing to show up for work.”The reason that they were found was because they didn’t show up to work. The boss called and they didn’t answer, so he ended up sending a couple other workers, and those are the ones that ended up finding them,” Nieto said.New Mexico State Police said there was no threat to the public.“At this time, investigators believe the substance may be transmitted through contact and do not believe it to be airborne,” said Officer Wilson Silver.Nearly two dozen patients were assessed and decontaminated after being exposed to the substance, the University of New Mexico Hospital said. Most of those were first responders who were showing no symptoms and later were discharged, hospital officials said. Three symptomatic patients were being monitored Wednesday evening, the hospital said.As law enforcement officers from multiple agencies remained on the scene late Wednesday afternoon, three bodies were placed onto gurneys and then loaded into a white van and driven away.Yellow tape surrounded the home along a dirt road. A singlewide trailer could be seen in the home’s backyard, with several cars, trucks and vans in the driveway.The mayor described Mountainair as a tight-knit community of fewer than 1,000 people. Town hall will be closed Thursday because of the emotional toll on employees, he said.“A tragedy like this is horrific,” he said.Residents voiced frustration on social media about drug use in the community and elsewhere. New Mexico had the fourth-highest rate of drug overdose deaths of any U.S. state in 2024, with 775 deaths, according to the most recent data available by the Centers for Disease Control and Prevention.Nieto said on social media that the town’s law enforcement officers and first responders work daily to protect the community and respond to difficult situations.“But the reality is that addiction and substance abuse are issues affecting communities all across our state and nation,” Nieto said. “There is no simple or immediate solution. Lasting change requires family support, accountability, education, and most importantly, individuals who are willing to accept help.”The Associated Press contributed to this report.