Now, a research group in Sweden is buzzing about yet another type of life-saving flight for the unmanned aerial vehicles—emergency medical flights.

Reenacting 18 real-life emergency calls of cardiac arrest to emergency medical services in Norrtälje, Sweden, researchers dispatched a drone carrying an automated external defibrillator (AED) from the local fire station. The drone reached the site of the emergency in around five minutes—about 16 minutes faster than emergency medical responders—researchers report Tuesday in JAMA.

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