DES MOINES, Iowa — Two Iowans are among the 111 individuals to be released early from prison after President Barack Obama commuted their sentences.

Obama’s action to shorten the prison terms of nonviolent drug offenders Tuesday means sentences for Mark Glidden of Clear Lake and Kenneth Russell McCoy of Council Bluff end in August 2018. Both must enroll in residential drug treatment programs.

Glidden’s 21-year sentence for manufacturing methamphetamine would have ended in 2023 and McCoy’s 18-year sentence for meth distribution would have ended in 2022.

The White House says Obama has commuted 673 prison sentences, more commutations than the previous 10 presidents combined.

More than a third of those whose sentences were shortened were serving life.