OKLAHOMA CITY (AP) — More than 450 inmates walked out the doors of prisons across Oklahoma on Monday as part of what state officials say is the largest single-day mass commutation in U.S. history.

The release of inmates, all with convictions for low-level drug and property crimes, resulted from a bill signed by new Republican Gov. Kevin Stitt. The bill retroactively applied misdemeanor sentences for simple drug possession and low-level property crimes that state voters approved in 2016.

Stitt has made reducing Oklahoma's highest-in-the-nation incarceration rate one of his top priorities and ha...