DENVER (AP) — Colorado’s FBI field office ranked No. 1 for bank robberies in the country in 2021.

Colorado Public Radio reports the state normally has between 110 and 120 bank robberies a year.

That number dropped to 90 in 2020, during the height of the COVID-19 lockdowns. But last year, it spiked to 195 robberies.

Law enforcement officials say fentanyl could be playing a role.

In the last few months of 2021, investigators arrested four suspects in more than 40 robberies combined.

Three out of four of those suspects told federal officials that they were supporting fentanyl addictions.

The state holds the top spot in other crimes.

Colorado was the No. 1 state in the nation for car theft rate per 100,000 residents in 2020, according to the National Insurance Crime Bureau.