UPDATE (12/22 at 9:01 p.m.): The FBI is interviewing the adoptive parents of two California City boys, ages 3 and 4, who have been missing since Monday evening, according to investigators.

A search warrant has been served and evidence collected from the home of Trezol and Jacqueline West, the couple who adopted Orrin and Orson West in April 2019, said California City police Lt. Jesse Hightower. The couple is cooperating and at this point no one has been ruled out regarding the boys’ disappearance, he said, adding that some items need to be forensically examined.

California City police have reached out to several different agencies for assistance due to the nature of the investigation, Hightower said. Police have also contacted the National Center for Missing & Exploited Children.

The parents went willingly with officers at 3:45 p.m. after a police cruiser entered their driveway, police said. They were not handcuffed as they were taken in for questioning.

Police served the warrant just after 6 p.m. Tuesday. Officers left the house carrying several brown bags and a large duffel bag. The parents’ white van was towed.

CALIFORNIA CITY, Calif. (KGET) — A search is ongoing for two brothers, ages 3 and 4, who went missing Monday evening in California City, with dozens of residents scouring the city and surrounding area looking for them or clues to their whereabouts.

Volunteers were out Monday night and again Tuesday morning looking for Orrin and Orson West. Volunteers said they’ll continue searching for as long as it takes.

“We went to about six or seven places last night and now we’re back here this morning at 9 a.m. waiting for search and rescue to lay us out with a plan” said LaMiya Patrick.

“People took this very serious, we’re a small town, so for one of our own to be missing we took it personal,” she said.

“I hope to find these babies alive,” said Jennifer Wood, another volunteer. “I want them found and taken some place where they’re safe.”

California City police said at 8 p.m. Monday that the boys had been reported missing and were last seen in the 10700 block of Aspen Ave. Both were described as 3 feet tall, between 30 to 40 pounds, black hair, brown eyes and were wearing black sweatshirts and gray sweatpants. They were last seen Monday.

The boys’ adoptive father, who didn’t give his name, said he appreciated the efforts of the community but declined further comment until police provided him with an update.

Anyone with information regarding the boys’ whereabouts is asked to call the California City Police Department at 760-373-8606.