A Staten Island teen is locked in a Russian jail cell after authorities caught her with marijuana while on a vacation with her mother, officials said.

Audrey Lorber, 19, was arrested at Pulkovo Airport in St. Petersburg when Russian agents found her with 19 grams of marijuana, worth about $375 in the US, according to the Moscow District Court of St. Petersburg.

It’s unclear how long Lorber has been in custody, but the last photos posted to social media showing her a free woman are more than a month old.

She and her mother, retired New York City school teacher Rochelle Lorber, were on vacation in the Eastern European nation when Audrey was caught with the illicit cannabis.

Her boss at the Waterside Restaurant in Tottenville said he spoke to Rochelle about two weeks ago, and she was scrambling to find a way to secure Audrey’s release.

“She’s hysterical,” Joey Guli said of Rochelle. “She moved out there and got an apartment just to try to get [Audrey] on house arrest, but they didn’t give it to her.

“It’s disgusting what they did. They are trying to throw the book at her.”

Audrey had a prescription for medical marijuana in the US and produced the court documents to prove it, but the script “does not apply to the territory of the Russian Federation,” according to the Russian statement.

Russian officials — which allowed patrons of the 2018 World Cup to bring heroin, cocaine and marijuana into the stadium as long as they had a doctor’s note written in Russian — said Lorber bought the marijuana in the US and used it for “personal consumption.”

The country imprisons more people per capita for drug crimes than any other European nation, according to the Moscow Times. Most are arrested for violating the same law Lorber is accused of breaking: Article 228 of the Russian Criminal Code.

The law’s nickname in Russian translates to the “people’s article” — because of the enormous number of people jailed for violating it. A quarter of all of Russia’s prisoners are in jail for drug-related crimes, according to the paper.

Photos of Audrey and Rochelle in happier times show the pair soaking up the Russian sights as recently as July 22, when Lorber posted an Instagram photo of the two giggling beside a river in St. Petersburg.

The duo also enjoyed tea and a folk show at the Palacio Nicolaievsky, Facebook photos posted by Rochelle show — among several performances they caught in the Russian capital of Moscow.

They went to an Ed Sheeran concert at Otkritie Arena on July 19, before hitting the Moscow Ballet’s performance of “Sleeping Beauty” on July 20.

Audrey, who was raised on Staten Island and graduated in 2017 from Tottenville High School, is a film student at Pace University, where she received a “scholarship and 4.0 GPA,” according to Guli.

He described her as a stellar employee who has worked at the restaurant for several summers.

“She has a career ahead of her and wants to be in the movie industry,” he said. “All my customers love her.”

Guli said he never saw the girl smoking or visibly high.

The US State Department said it is aware of Lorber’s arrest and will “stand ready to provide all appropriate consular services.”

Rochelle could not be reached.