"SLCPD has been conducting a missing persons investigation and have spoken with both Lyft as well as the Lyft driver," the department said in the news release. "Lyft and their driver have cooperated with the investigation."
"We don't have anyone searching any particular area right now because we don't have any credible evidence of where she might be," Sgt. Brandon Shearer told The Salt Lake Tribune.
A representative for Lyft told CBS News there were no irregularities with Lueck's ride and that it ended at the destination she entered on the app and the driver continue to pick up and drop off other customers right after Lueck arrived at her destination.
"We recognize how scary this must be for those who know and love Ms. Lueck," Lyft said in a statement to KSTU. "The safety of our community is fundamental to Lyft and we are actively assisting law enforcement with their investigation."
"Our primary goal is to find Mackenzie and bring her home," Lueck's family said in a statement to KUTV. "Her family is grateful for the concern, prayers and the tireless efforts of the Salt Lake City Police and members of the community."
"The SLCPD has not discovered any information that would lead us to believe that Mackenzie has been harmed or is in danger at this time," the department said. "Detectives are concerned for Mackenzie's welfare. If anyone has any information on Mackenzie or where she may be, please contact SLCPD at (801)799-3000 re: case 19-111129."