Missing Utah student met mystery person in a park in middle of night and got ...

Mackenzie Lueck, 23, was last seen in the early hours of Monday morning

Mackenzie Lueck, 23, was last seen in the early hours of Monday morning

Authorities say a missing University of Utah student who hasn't been heard from in over a week was last seen meeting an unknown person at a park in the middle of the night.

Salt Lake City assistant Police Chief Tim Doubt said Monday at a news conference 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 3am. 

Doubt declined to describe the person's gender and says they don't know who it is.

Doubt says there is no evidence that Lueck is in danger, but they are concerned since she's been missing classes and flights.

Police have cleared the Lyft driver as a potential suspect.

Lueck has not been seen or heard from since she was dropped off in a Lyft at a mysterious address eight miles from her home in the middle of the night, straight off a flight from California a week ago. 

Lueck's Lyft driver dropped her off in North Salt Lake, near Salt Lake City. 

She had ordered the car from the airport earlier after flying in from California where she had been attending her grandmother's funeral. 

Police are refusing to disclose the address she was dropped off at and will not even confirm if it is a residence, let alone who it may belong to that Mackenzie might have wanted to see. 

Salt Lake City assistant Police Chief Tim Doubt said Monday at a news conference 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 3am

Salt Lake City assistant Police Chief Tim Doubt said Monday at a news conference 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 3am

Salt Lake City assistant Police Chief Tim Doubt said Monday at a news conference that the Lyft driver who dropped off Lueck (above) says she didn't seem in distress when she met the person on June 17 at about 3am

As their search for her continued on Monday, friends of the young woman spoke out to say she had missed a wedding, a mid-term exam and work since going missing. 

They say it is not like her to go 'off-grid' and that she would never willingly abandon her cat, which lives

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