Teri Talan just wants to find her missing son, Aaron Morganstein, and his girlfriend, Mariya Mitkova.

Morganstein and Mitkova were last seen at a home in the Elysian Park area on Saturday, prompting separate searches by the Los Angeles Police Department and the couple’s loved ones.

“This is really serious. I’m just terrified about their condition and what’s going on,” Talan, of Chicago, said Wednesday by telephone. “Something is definitely wrong. Whether their car broke down or someone’s injured, … he wouldn’t just not show up to work in San Diego on Monday.

Mitkova and Morganstein are frequent campers and were believed to be headed to Joshua Tree National Park or the Imperial Sand Dunes in Imperial County. They were last seen in the 2200 block of Shoredale Avenue, the LAPD’s Missing Persons’ Unit said Wednesday in a press release.

Talan said the two live in separate residences in the L.A. area.

According to Talan, the couple’s friends organized a search in Joshua Tree after a colleague became concerned that Mitkova — who goes by the nickname Masha and works in computer programming — did not show up at her job Monday.

Morganstein works as a photographer and was scheduled for a shoot in San Diego on Monday, Talan said. He had planned to drop Mitkova off at a train station in Palm Springs, but “none of that happened,” Talan explained.

She added that she would like police to use an aerial search detail to locate the couple because she thinks their car, a blue 2002 Subaru Outback, won’t be found easily. The vehicle’s California license plate is 6PRH231, according to the LAPD, which initially gave out a different license number but later issued a correction.

“Both of them are pretty experienced campers,” Talan noted. “They don’t park in a parking lot and go do a typical route. They go to interesting and unusual places. It’s not like their car is going to be found in a regular parking lot.”

Mitkova, 27, is 5 feet 7 inches tall and weighs around 130 pounds, police said. She has blond hair, blue eyes and was wearing a white T-shirt with print on it and shorts before she vanished.

Morganstein is 33 years old, has black hair and brown eyes, according to police. He stands 6 feet 3 inches tall, weighs around 180 pounds and was last seen wearing blue jeans, a brown shirt, a gray hoodie and a brown hat.

Mitkova’s brother, Nicko Mitkova, said they are “wonderful people” and go camping “all of the time.”

“This is totally out of the ordinary,” Mitkova, of Los Angeles, said. “Something went wrong and we are now currently searching.”

As more time passes, he is becoming more concerned.

“Days are slipping away,” he said. “We first need to locate the vehicle, and we need to find them.”

Police urged anyone with information on Mitkova and Morganstein’s whereabouts to contact them at 213-996-1800. During nonbusiness hours or on weekends, calls should be directed to 1-877-LAPD-24-7 (1-877-527-3247). Anonymous tips can be left with LA Regional Crime Stoppers at 1-800-222-TIPS (800-222-8477) or go directly to www.lacrimestoppers.org.