MINNEAPOLIS (WCCO) – Delta says naloxone, a drug used to treat overdoses, will be available in emergency medical kits on flights beginning this fall.

The decision comes after a passenger tweeted that a man died aboard a Delta flight on Saturday. According to the tweet, the man reportedly overdosed on the flight. The tweet said “needle in arm he passed out in bathroom.”

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According to CNN, Delta did not provide details about the incident due to privacy concerns, but the airline said there was a medical emergency aboard the flight.

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In March, Delta said it was already in the process of updating its medical kits with the medicine. The airline will join United, Frontier and Alaska Airlines in carrying naloxone on board.

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Last year, the Association of Flight Attendants called for the Federal Aviation Administration to include naloxone nasal spray to respond to onboard opioid overdoses.