The US and Iran do not maintain diplomatic relations, and communications between the two nations are passed along by Swiss diplomats.
She reported her son's disappearance after he failed to return in July but learned from the State Department only three weeks ago that he was being held in Iran.
A Department of State spokesperson told the BBC: "We are aware of reports of the detention of a U.S. citizen in Iran".
"His arrest was communicated early through Interests Section of The Islamic Republic of Iran to the United States government".
White's family said he suffers from acute asthma and shortly before his latest visit to Iran he underwent chemotherapy for a neck tumour.
Iran had not confirmed the arrest before the state news agency IRNA carried a statement by foreign ministry spokesman Bahram Qassemi on Wednesday, which did not specify when it had happened or what crime he was accused of.
White said she did not intend to release further details because she was anxious about the complexity of her son's case in Iran.
"The case of this person is being handled by the relevant authorities and at the conclusion of this process they will issue the necessary information", Ghasemi was further quoted as saying on his Telegram account.
Partial solar eclipse observed across Japan
Details on what is a partial solar eclipse , India timings, where will it be visible, and how to watch. For the first time in three years, the United States will be able to experience a total lunar eclipse.
Ghasemi denied allegations that White, who hails from Imperial Beach, California, has been mistreated in prison.
Xiyue Wang, a China-born U.S. citizen and Princeton University graduate student, was detained in August 2016 while doing scholarly research and studying Farsi, the university said.
"I'm very anxious about his health", White's mother told CBS on Tuesday.
New details are emerging about an American Navy veteran being held captive in Iran.
White is the fourth American known to be held by Iran, according to CBS News. Wang was sentenced to 10 years in prison after being convicted of spying, the Iranian government said in 2017.
President Trump's hardline stance - exiting the nuclear deal and sanctioning Iran - has not stopped it from continuing to detain three other Americans, including Siamak Namazi and his 82-year-old father.
The last time Iran released any imprisoned Americans was when the worldwide accord on Iran's nuclear programme took effect in January 2016.
Christine Levinson's husband, former Federal Bureau of Investigation agent Bob Levinson, has been missing in Iran since 2007.
Kelly " that renewed interest in allegations Kelly has abused women and girls and is holding some of them against their will. Foxx said she has been "in contact with" people who have information related to claims in Cook County.
Cameron Kaiser said the victim had not received a flu shot and did not have any known pre-existing health disorders. Last year, the flu killed more than 80,000 Americans , including a record 185 children.
The teacher is scheduled to appear in court Wednesday. "The Greenup County School District prioritizes the safety of our students. The boy's mother, Angel Nelson, told CNN on Monday that her son was removed from a classroom after he had an outburst.
Hart dropped out of the annual award show in December after homophobic tweets he had shared years in the past re-emerged. In my mind I got the job, it was a dream job, and things came up that simply prohibited it from happening.
Mayhew is an animal welfare charity which helps cats and dogs through community initiatives and veterinary care. Two of the patronages Meghan now has formerly belonged to the Queen and have been handed over to the Duchess.
As disclosed by AMD, the Radeon VII graphics card will be available beginning February 7, with a price tag of $699. The Vega 10 is built on GlobalFoundries' 14nm process; the Vega 20 is built on TSMC's 7nm process.
The coin has been described as the " most famous" coin that was made by mistake, according to Heritage Auctions . They eventually became dislodged and were fed into the coin press, along with the wartime steel blanks.
Memphis offered Parsons an opportunity with its G League affiliate but wouldn't assure him a spot on the active roster. The 30-year-old player has $38 million still left on his contract with Memphis through 2020.
But concerns are mounting that May will be unable to push the deal through a deeply divided British parliament. Standoff: Anti-Brexit protester Steve Bray, left, and a pro-Brexit supporter outside the Houses of Parliament.
A repeating FRB , however, provides more opportunities for scientists to learn about these radio bursts and where they come from. We may soon find out thanks to some mysterious signals that were recently picked up by a telescope in British Columbia.
Saosongyang was booked into Sacramento County Jail and will be transferred to the Solano County Jail later this week. The officials were told at the Lucky Grocery Store, where the ticket was purchased , that it might have been stolen.
History beckons as Serena shoots for Grand Slam history
The Romanian could face Venus Williams in the third round and Serena Williams is a potential last-16 opponent for the top seed. Roger Federer and Caroline Wozniacki enter the year's first Grand Slam as the reigning singles champions of the tournament.
Amazon CEO Jeff Bezos and wife divorcing after 25 years
She has released two novels, the first of which, The Testing of Luther Albright , collected an American Book Award in 2006. Jeff Bezos also bought a mansion in a swanky Washington D.C. neighbourhood past year for $US23 million.
Packers make LaFleur the 15th head coach in Packers' history
The Packers are confident they've landed their guy in LaFleur, who fits the popular mold of the young, offensive-guru type. No matter how you slice up LaFleur's background, all signs point to him having a handsome relationship with Rodgers.
Patrick McCaw plans to sign with Raptors
Now, according to Yahoo's Shams Charania, McCaw will sign a one-year contract with Toronto for the veteran's minimum of $786,000. After the guard signed a non guaranteed offer sheet with the Cavs , the Warriors decided not to match it.