In this image made from a June 2019 Salt Lake City International Airport video provided by the Salt Lake City Police Department shows Mackenzie Lueck, a missing University of Utah student at the airport in Salt Lake City. Police are serving search warrants and hunting for any clues about the mysterious disappearance of Lueck, including basic details about a person she met when she was last seen. (Salt Lake City Police Department via AP)
The Associated Press
SALT LAKE CITY (AP) - Police on Tuesday issued a public appeal for a person last seen with a University of Utah student before she disappeared more than a week ago.
Mackenzie Lueck was last seen being dropped off at a Salt Lake City park at about 3 a.m. on June 17 by a Lyft driver who took her there from the airport after she returned from visiting family in California, authorities said.
Salt Lake City assistant Police Chief Tim Doubt also released new photos of Lueck from immediately before her disappearance showing her after getting off a flight wearing black sweat pants and a light-colored sweater, carrying a small black backpack, large blue purse and brown suitcase.
She did not appear to talk to anyone at the airport, he said.
He appealed for the person, whose gender is unknown, who met the 23-year-old student at the park to contact authorities. "We have exhausted all avenues of determining that information, and want to ask this person to please call us," he said.
Investigators have served several search warrants and are asking for tips about the woman's whereabouts or any additional phones or social media accounts she may have had.
The park where she was left by the Lyft driver is located eight miles (13 kilometers) from her apartment. Police have said she didn't seem distressed when she met up with the person.
Police say they don't have evidence of foul play, but are worried because it's unusual for her to "go off the grid." She has missed classes and was not on a planned flight to California last Sunday.
Police have said the Lyft driver has been cleared in her disappearance.
Before her disappearance, Lueck had encountered Salt Lake City police a handful of times, once for a speeding ticket in 2015, another in connection with an assault in 2018 and a third time when she claimed lost property earlier this year, Doubt said. He refused to say whether she was a witness or victim in the assault, but said all of the previous cases are closed and none are considered connected with her disappearance.
Lueck is a part-time student in her senior year majoring in kinesiology and pre-nursing. She has been a student at the university since 2014 and is a member of The Church of Jesus Christ of Latter-day Saints.
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A police tip line is 801-799-4420.
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Information from: The Salt Lake Tribune, http://www.sltrib.com
This undated missing persons poster provided by the Salt Lake City Police shows Mackenzie Lueck, 23, a senior at the University of Utah, who was last seen a week ago. Police and friends are investigating the disappearance of the University of Utah student who hasn't been heard from since she flew back to Salt Lake City last Monday after visiting family in El Segundo, California. (Salt Lake City Police via AP)
The Associated Press
Salt Lake City assistant Police Chief Tim Doubt releases video footage of a missing University of Utah student walking at Salt Lake City International Airport, during a news conference Tuesday, June 25, 2019, in Salt Lake City. Mackenzie Lueck, 23, was last seen June 17, when she took a Lyft car from the airport to a park located miles from her apartment. Police say she didn't seem distressed when she met with someone at about 3 a.m. (AP Photo/Rick Bowmer)
The Associated Press
CORRECTS FIRST NAME TO MACKENZIE WITH LOWERCASE K - Salt Lake City assistant Police Chief Tim Doubt speaks during a news conference Monday, June 24, 2019, in Salt Lake City. Doubt said that the Lyft driver who dropped off 23-year-old Mackenzie Lueck says she didn't seem in distress when she met the person on June 17 at about 3 a.m. Doubt declined to describe the person's gender and says they don't know who it is. (AP Photo/Rick Bowmer)
The Associated Press
Juliana Cauley, who described herself as a friend of Mackenzie Lueck, speaks during a news conference Tuesday, June 25, 2019, in Salt Lake City. Police are serving search warrants and hunting for any clues about the mysterious disappearance of a University of Utah student, including basic details about a person she met when she was last seen. Salt Lake City assistant Police Chief Tim Doubt said Tuesday the person who met 23-year-old Lueck could have been a man or a woman based on the vague description investigators have. (AP Photo/Rick Bowmer)
The Associated Press
CORRECTS FIRST NAME TO MACKENZIE WITH LOWERCASE K - A joggers runs pass a poster of Mackenzie Lueck at Liberty Park Monday, June 24, 2019, in Salt Lake City. Police and friends are investigating the disappearance of the 23-year-old University of Utah student, whose last communication with her family said she arrived at Salt Lake City International Airport on Monday, June 17. (AP Photo/Rick Bowmer)
The Associated Press
Hatch Park is shown Monday, June 24, 2019, in North Salt Lake. A University of Utah student missing for over a week was last seen meeting an unknown person at the park at 3 in the morning, authorities said. The Lyft driver who took Mackenzie Lueck from the airport and dropped her off at the park in a Salt Lake City suburb on June 17 told detectives the woman didn't seem in any distress when she met the person, said Salt Lake City assistant police chief Tim Doubt. (AP Photo/Rick Bowmer)
The Associated Press
This undated photo taken from the Facebook page #FindMackenzieLueck shows a Mackenzie Lueck, 23, a senior at the University of Utah, who was last seen a week ago. Police and friends are investigating the disappearance of the University of Utah student who hasn't been heard from since she flew back to Salt Lake City last Monday after visiting family in El Segundo, California. (#FindMackenzieLueck via AP)
The Associated Press
In this Saturday, June 22, 2019 photo, Sara Richardson hands a motorists a sign with Mackenzie Lueck's photo in Liberty Park in Salt Lake City. Police and friends are investigating the disappearance of the 23-year-old University of Utah student, whose last communication with her family said she arrived at Salt Lake City International Airport on Monday, June 17. (Rick Egan/The Salt Lake Tribune via AP)
The Associated Press