The FBI has joined the search for a retired US Air Force general — who once led a site long rumored to be tied to UFO research — after he was reported missing in New Mexico.
Retired Maj. Gen. William Neil McCasland, 68, was last seen in Albuquerque at about 11 a.m. on Friday, local authorities said.
The Bernalillo County Sheriff’s Office quickly issued a “silver alert” — a system often used for missing people with medical issues — amid concerns for his safety and well-being.
The feds have since confirmed they are now assisting the sheriff’s office, as well as New Mexico Search and Rescue, as the search stretched into its fourth day.
“The FBI Albuquerque Field Office is involved in this investigation, as it is standard practice for the FBI to assist our local law enforcement partners if we have a tool, tactic, or technique that could benefit their investigations,” a spokesperson told the Daily Mail in a statement.
“The Bernalillo County Sheriff’s Office is leading this investigation.”
The sheriff’s office said they had exhausted several efforts in recent days, including drone, K9 and helicopter searches.
“There are no signs of any criminal activity such as a kidnapping or anything else,” a spokesperson told The Post.
“His disappearance is only being investigated as a missing person/silver alert at this time.”
Prior to his retirement, McCasland was a commander at Kirtland’s Phillips Research Site and Air Force Research Laboratory — a critical US Air Force base in Ohio, according to his online profile.
Alien enthusiasts have long claimed the site has been linked to various UFO sightings.
The base was at the center of the military’s infamous “Project Blue Book” investigation into Unidentified Flying Objects back in the 1950s and 1960s.
McCasland, meanwhile, was also a longtime leader at the Kirtland Air Force Base in New Mexico and had prior stints at the Pentagon before retiring in 2013.
Col. Justin Secrest, commander of the 377th Air Base Wing at Kirtland, told the Albuquerque Journal that the base was coordinating with local authorities in the search for the retired general.
“Our thoughts are with his family during this difficult time,” Secrest said.
Rep. Melanie Stansbury was among those who blasted out the silver alert in the search for McCasland.
“Bernalillo County has issued a Silver Alert for retired Maj. Gen. William Neil McCasland, a longtime leader at Kirtland and former commander of the Phillips Research Site and Air Force Research Laboratory,” she in a post on X.
“He was last seen Friday morning near Quail Run Court NE, and due to medical concerns, authorities are asking for our community’s help.”
The sheriff’s office said it was unclear what McCasland was wearing, or which direction he was headed, when he was last seen.
