A manhunt continued Wednesday for a suspect who stabbed a ranger at Staunton State Park, Colorado, in a believed targeted attack.

The incident occurred around noon, and the seasonal ranger was airlifted to a hospital in serious condition.

Authorities lifted a nearby shelter-in-place order, but the suspect, who fled on foot, remains at large, ABC News has reported.

Staunton State Park was closed and visitors evacuated during the search, and the motive is still under investigation.