THOMASVILLE, N.C. (WGHP) — Thomasville police returned to Pine Ridge Health and Rehabilitation Center on Thursday four days after investigators found two of the nursing home residents dead and two in critical condition

Police say they obtained a search warrant for the facility. A crime scene unit was seen parked in front of the nursing home at about 4:15 p.m. Thursday. Crews were on scene for almost two hours.

At 7:56 p.m. on Sunday, police say they started getting calls that people could not reach staff by phone and some residents hadn’t seen staff at the facility.

When officers arrived, they determined that staffing was “inadequate” with one licensed practical nurse and two certified nursing assistants to care for the 98 patients at the site.

Officers called in Thomasville firefighters and Davidson County EMS to help check on all of the patients. Crews were on scene until 7:30 a.m. Monday.

At the scene, officials found two of the nursing home residents dead. Two others were in critical condition. None of the four were identified.

One of the two patients is set to be discharged. Police say that the patient will transfer to a different assisted living facility. The other patient remains in the ICU in critical condition.

Police have not released details on the state in which investigators found the two patients, and officers are still waiting for the autopsy results for the two residents who were found dead.