CRANSTON, R.I. (WLNE) -- Several fire units responded Wednesday night to a  hazmat situation at the ACI in Cranston.

Richard Ferruccio, head of the correctional officer's union, told ABC6 the guards were searching a common area in the facility around 6:30 p.m. when they came across a hidden bag of an unknown white powdery substance.

He said when officers picked it up, some of the contents spilled out, prompting the hazmat response.

Due to concerns that the powder might be the extremely potent and hazardous drug fentanyl, the two officers were decontaminated and taken to the hospital for evaluation, according to Ferruccio.

He said they did not appear to have symptoms of fentanyl contamination and the substance is on they way to a lab to be tested.

A cleaning company is also working to decontaminate the common area.

©WLNE-TV / ABC6 2019