The Mississippi Bureau of Investigation on Thursday issued a Silver Alert for a missing college student from Milwaukee.
Kamilah N. Fipps, 21, is a senior at Jackson State University.
She was last seen Tuesday on J.R. Lynch Street walking away from her dorm in an unknown direction.
The location is on campus near the JSU Student Center.
Fipps was described as being 5 feet 5 inches tall and weighing about 130 pounds.
She has black hair, brown eyes and wears gold-framed glasses.
The statement from MBI cited relatives who said Fipps has a medical condition "that may impair her judgment."
Investigators said she may have bought a bus ticket.
"Based on the information we have, the ticket was purchased by Miss Fipps and ended in New York City, which was the final destination for that ticket she purchased," said Chief Herman Horton, director of public safety for JSU.
He said during a news conference Friday that police have been tracking a credit card that showed Fipps purchased the ticket Wednesday at a Jackson Greyhound bus station.
"We have reached out to determine if she arrived at that location, or if she was with someone," Horton said.
The police chief said Fipps' mother was concerned about her whereabouts and had not heard from her daughter.
"We have been in constant contact with her mother encouraging her to give us a call, and she's been doing that," Horton said. "We understand that as a parent, being miles away from your child and haven't heard from her, we understand that."
No foul play was suspected in her disappearance.
"As of this morning, I found out this has somewhat reached the national level," Horton said. "We appreciate it going to that length, rather than keeping it local."
Police began investigating after someone called about 1 p.m. Thursday concerned about Fipps' wellbeing.
"My heart is breaking," Vicky Fipps told WISN 12 on Friday. "I just want my baby back home."
She said she didn't know why her daughter would be going to New York.
"I'm calling her phone. I'm calling her phone and it's still going to voicemail," Vicky Fipps said.
Kamilah Fipps is a graduate of Golda Meir High School.
"I just couldn't really believe she was really missing," friend Austin Taylor said at Jackson State.
"The last time I talked to her was on Monday, and I kind of knew something was wrong because I called her back on Tuesday. Her phone went straight to voicemail," her mother said.
The condition fit the criteria in Mississippi for Silver Alert status, which is slightly different than Wisconsin.
"The Silver Alert System, which is similar to the Amber Alert System for children, is designed to help spread the message about a missing person, 18 years or older with dementia or other cognitive impairment, in hopes to locate the person as quickly as possible," according to the Mississippi Department of Public Safety website.
In Wisconsin, Silver Alerts are issued for individuals who are 60 years of age or older and believed to have Alzheimer's, Dementia, or another permanent cognitive impairment "which poses a threat to their health and safety", according to the Wisconsin Department of Justice.
Anyone with information on Fipps' whereabouts was asked to call Jackson State University Police at 601-979-2580.