She learned the news a day after Kim's detention during another call with PUST, where her husband has been involved in agricultural development work at the university's experimental farm since 2014, she said.
In April, Kim Sang Duk, also known as Tony Kim, was also detained for "hostile acts" while trying to fly out of Pyongyang International Airport.
The detained victim, named Kim Hak-song, worked at the Pyongyang University of Science and Technology, the same university where USA citizen, Tony Kim, worked. He taught accounting at the Pyongyang University of Science and Technology. "North relations right now and we are at a peak", John Delury, associate professor of Chinese studies at Seoul's Yonsei University, told NBC News.
After arresting two American university instructors and laying out what it says was an elaborate, CIA-backed plot to assassinate Kim Jong Un, North Korea is claiming to be the victim of state-sponsored terrorism - from the White House.
U.S. President Donald Trump warned he fears a "major conflict" with North Korea, given that Kim Jong-un chooses to ignoring global sanctions and continues testing out ballistic missiles.More news: Le Pen's father says her stance on euro, Europe undermined her
Korean-American Kim Dong Chul is serving 10 years on espionage charges and Otto Warmbier, a University of Virginia student from OH, was sentenced to 15 years of hard labor in 2016 for removing a propaganda poster.
U.S. Secretary of State Rex Tillerson has urged other Asian nations to pressure North Korea to dismantle its programs as well.
In an interview with "CBS This Morning", Rice was asked what she thinks North Korea is trying to accomplish by detaining another US citizen over the weekend.
In a May 3 interview on MSNBC, Mr. Gardner objected to President Trump meeting unconditionally with North Korean dictator Kim Jong-un.
China apparently conveyed the message to Pyongyang, it added, while many observers are skeptical about any significant denuclearization deal between the two sides. Kim was born in South Korea, but is believed to have US citizenship.More news: Lewis Hamilton mystified by lack of pace at Russian Grand Prix
North Korea did not provide further details about the circumstances.
Citing unidentified diplomatic sources, the Japanese newspaper wrote that in return for North Korea foreswearing its nuclear and missile technologies, the US promised it "would not seek regime change, regime collapse or an accelerated reunification of the Korean Peninsula, nor would it look for an excuse to advance north of the 38th parallel, the de facto inter-Korean border". He was accused of "acts of hostility aimed to overturn" the rule of North Korean leader Kim Jong Un.
Rice said the North appears to be trying to show it's powerful. DPRK is short for the Democratic People's Republic of Korea, North Korea's official name.
North Korea's willingness to engage in talks could also indicate Pyongyang is planning to stay away from major provocations this week, as South Korea holds its presidential election on Tuesday.More news: Syria violence kills 4, wounds child despite safe zones