The rate of drug overdose deaths linked to fentanyl in the United States has skyrocketed over the last five years, new federal data showed.

The rate of overdose deaths involving fentanyl spiked by 279% between 2016 and 2021 from 5.7 per 100,000 to 21.6 per 100,000, according to a report published early Wednesday by the National Center for Health Statistics’ National Vital Statistics System — which looked at death certificate records.

Dr. Allison Lin speaks with ABC News about the report and the complex issue of addiction.