Mystery substance scare: 3 dead, first responders quarantined over toxic exposure in US

Key points

• New Mexico State Police respond to home in Mountainair, where authorities say several people died and more than a dozen first responders were exposed to an unknown substance (AP) Substance yet to be identified First responders describe frightening scene Community shaken by tragedy Three people died and more than a dozen first responders were quarantined and assessed for possible exposure to an unidentified substance after authorities responded to a suspected drug overdose at a rural home in New Mexico.According to New Mexico State Police, four people were found unresponsive inside the residence east of Albuquerque.
• Three were declared dead, while the fourth person was admitted to a hospital in Albuquerque for treatment.During the emergency response, several firefighters and EMTs reportedly began experiencing symptoms such as nausea, coughing, vomiting and dizziness after coming into contact with the substance.Officials at the University of New Mexico Hospital confirmed that 23 exposed individuals were...