The Washington Department of Corrections reported 20 active COVID-19 cases among incarcerated individuals over the last 14 days at Larch Corrections Center, according to a Wednesday bulletin.

The minimum-security prison near Yacolt, Clark County, was placed on facilitywide outbreak status after one incarcerated individual and three staff members tested positive, the DOC reported last week. There were four active cases among staff members as of Wednesday.

To date, 438 incarcerated individuals and 88 staff members have tested positive at Larch, according to the DOC. The majority of those cases came during an outbreak in late 2020, when more than 90 percent of the inmate population tested positive.

Larch also saw an outbreak that started in early February and lasted more than a month.

As of June 30, all visits to the facility have been placed on hold, according to the DOC, and all staff are required to test twice a week.

Larch’s average daily population in June was 218, with a capacity of 240.