Two people were injured after a gunman walked into a Colorado halfway house in the early hours of Friday morning and started firing at employees and residents, authorities said.

The suspect, Francis Pizzo, 46, is a former resident of the Arapahoe County Treatment Center in northeast Colorado who recently escaped from the facility, said Sheriff's Capt. Larry Etheridge.

Deputies responded to a report of a shooting at the facility just after 1:00 a.m. local time on Friday, the sheriff's office said in a statement.

The two people wounded in the attack were transported to local hospitals, where they were being treated Friday for "not life-threatening" injuries, according to the statement.

The gunman fled the scene of the shooting and authorities are working to track him down, Etheridge said.

The halfway house is a contracted community corrections facility for the Colorado State Department of Corrections, according to the statement.

The shooting incident occurred just three months after the executive director of that department was shot and killed at his house.

Tom Clements, 58, was gunned down outside his front door in Monument, Colo. on March 19, setting off a search for the assailant, later determined to be parolee Evan Ebel.

The manhunt came to a dramatic climax after Ebel, who reportedly had ties to white supremacist groups, was killed in a shootout with Texas deputies March 21.

Related: