The shooting occurred shortly before 8 p.m. at the Bu Shay Campground in Redwood Valley, according to a report from Capt. Kurt Smallcomb of the Mendocino County Sheriff's Office.
The names of the victims have not yet been released, and Smallcomb said suspects were still being identified.
Smallcomb said that at 7:50 p.m. Wednesday the Mendocino County Sheriffs Dispatch Center was contacted by employees at the campground regarding a shooting which had just occurred.
Deputies, along with the California Highway Patrol, Redwood Valley Fire, California Department of Forestry, REACH and and Cal Star air ambulances, proceeded to and arrived at space No. 8 at the campground, Smallcomb reported.
He said deputies learned that two people at the campsite had been shot.
A 40-year-old man was transported to Ukiah Valley Medical Center with life-saving efforts under way, but the man died from his injuries, Smallcomb said.
The second victim, reported to be in his 20s, was flown via air ambulance to an out-of-county hospital for a single gunshot wound to the upper torso. Smallcomb said that victim's medical condition was listed as critical but stable early Thursday morning.
Smallcomb said sheriff's detectives were investigating the incident and also were in the process of identifying at least three to four suspects responsible for the shootings.
At about 2:30 a.m. Lake County authorities issued an officer safety be on the lookout for a 33-year-old white male subject wanted in connection with the shooting.
The man was reported to be associated with a black Nissan sedan that contained three other white male adults. Officials said he was armed and dangerous, and last seen in Mendocino County at around the time of the fatal shooting.
Smallcomb said an autopsy of the fatal shooting victim is planned for Friday.
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