Police are looking for a 17-year-old foreign exchange student who they believe was "forcefully taken" from the home he was sharing with his host family in Utah.

In a press conference on Friday, Riverdale Police Chief Casey Warren said that authorities believe that Kai Zhuang, an exchange student from China, was "forcefully taken" and is "being held against his will."

Authorities said that Zhuang was last seen at about 3:30 a.m. on Thursday and police were notified of his disappearance by 8:30 p.m. that night. 

The student was described as 5-feet-9, 150 pounds with black hair and black eyes.

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Police sent an endangered missing person advisory on Friday after the department received a call from Zhuang's local high school saying that they had heard from his concerned parents in China.

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Zhuang's frantic parents claimed that they received a photo of their son along with a ransom letter, Chief Warren said.

Riverdale police say they are working with the FBI, the US Embassy in China and Chinese officials to locate the missing juvenile.

No suspect has been identified at this time.

Anyone with information about Zhuang's disappearance is asked to call the Riverdale Police Department at (801)394-6616.

The U.S. Embassy in China did not immediately respond to Fox News Digital's request for comment.

The Mayor of Flavortown is ready for the heat.

Guy Fieri restored his mind, body and spirit following his last trip to the gym for 2023, and shared a shirtless selfie to celebrate his accomplishment with his millions of social media followers.

"Last work out of the year followed up with hot sauna and cold plunge," the Food Network star wrote on Instagram stories. 

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"Gettin' me ready for @ryderfieri's big 18th on the 31st. Hope everyone has great holidays!!" 

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He showed off the 176-degree temperature inside his own wooden sanctuary from Almost Heaven Saunas, and wrote, "Bring on the heat!!"

Fieri is gearing up for his son Ryder's 18th birthday. The "Diners, Drive-Ins and Dives" personality and wife Lori also have son Hunter, 27, and raised nephew Jules following the death of Fieri's sister Morgan in 2011. 

The Food Network star exclusively told Fox News Digital earlier this month that his boys will have to be self-sufficient and work for their own goals. 

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"I've told them the same thing my dad told me," he said. "My dad says, 'When I die, you can expect that I'm going to die broke, and you're going to be paying for the funeral.'" 

He added, "And I told my boys, none of this that we've been … that I've been building are you going to get unless you come and take it from me." 

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While Jules has been working toward a career in the music industry and is in a law program in Southern California, Ryder had a small problem with some of his dad's rules.

"My youngest son, Ryder, is a senior in high school getting ready to graduate, or you know, going to graduate in the spring. And he's like, ‘Dad this is so unfair. I haven’t even gone to college yet, and you're already pushing that I've got to get an MBA? Can I just get through college?'"

Fieri added, "Shaq said it best. Shaq said it about his kids one time. He says, ‘If you want any of this cheese, you’ve got to give me two degrees.' Well, my two degrees mean, you know, postgraduate. So they're on their way."