PIERRE, S.D. (AP) - Police are searching for a 25-year-old inmate who walked away from a minimum-security prison in Pierre.
William Vandervier failed to return to the Rapid City Minimum Unit on Monday afternoon. State officials say he had been searching for a work-release job.
Vandervier was sentenced in March 2011 to four years in prison for possession of marijuana. People with information are asked to call law enforcement.
Vandervier is the second inmate to disappear in recent days. Authorities continue searching for 31-year-old Oscar Herrera-Menjivar, who escaped from a prisoner transport bus early Saturday near Spencer.
Herrera-Menjivar was being transported from Florida to Nebraska. Authorities say he should be considered dangerous and warned that travelers in the area should not pick up hitchhikers. He originally was charged with sexual assault of a minor.