MADISON, Wis. -- Madison police detectives are getting new leads about a 22-year-old woman who vanished without a trace from the downtown area late last month.

VIDEO: Watch The Report | VIDEO: Nolan Case Goes National

Authorities said that members of the public are coming forward to offer new information to police about University of Wisconsin-Whitewater student Kelly Nolan.

Joel DeSpain, Madison police's public information specialist, said that Nolan's disappearance on Saturday, June 23, continues to be baffling. However, investigators said that new tips that they've received might fill some of the missing puzzle pieces, WISC-TV reported.

According to authorities, Nolan separated from a group of friends in downtown Madison late Friday, June 22. Some people have come forward to say that they saw her early Saturday morning in the area.

"We've gotten a lot of information that's come in on Crime stoppers," DeSpain said. "In addition, we've had people come to the Police Department who've indicated they saw her after midnight on Saturday, the 23rd. And that they either talked with her, saw her walking around. So these are people we've contacted. And we're interviewing them to find out what they know."

Authorities on Monday distributed a photo of a slate gray handbag that looks similar to the purse that Nolan was last seen carrying. Detectives said that they believe the purse is distinctive enough that it might provide new leads for witnesses who haven't yet contacted police. There has been no trace of her purse or any of Nolan's possessions since she vanished, WISC-TV reported.

DeSpain said that investigators are collecting surveillance video from any of the places that Nolan might have been the night that she disappeared and painstakingly examining the footage for any signs of Nolan and anyone she may have been with.

Nolan's family and friends have been putting up fliers since she was last seen. This past weekend, they distributed fliers in Warner Park and other locations. The family has posted a printable flier on Facebook.

A picture of the woman has also been placed on an electronic billboard on the Beltline, WISC-TV reported.

The Madison Police Department sent information about Nolan to the National Center for Missing and Exploited Children Friday, which will help distribute information about her disappearance.

DeSpain said that several days of investigating by all the Central District detectives should yield some solid information.

Nolan is described as 5 feet 6 inches tall and weighs about 125 pounds. She has brown eyes and brown hair. Her sister said that on Saturday night, Kelly Nolan was wearing a green, sleeveless top with a scoop neck, a light pair of jeans, sandals with a heel and carrying the purse.

Authorities are asking anyone with any information about Nolan to call Crimestoppers at 608-266-6014.

Case Getting National Attention

As the search continues, the Nolan case is starting to get national attention.

CBS, CNN and Fox News Channel are some of the national media outlets that have contacted the Nolan family and Madison police.

"What we want to do is bring this young woman home, hopefully alive and well, so she can be reunited with her family," DeSpain said. "If some attention by the national media helps us in that effort, then that's good."

Police said that phones have been ringing off the hook from both local and national media outlets.

The last time a local missing person garnered national attention was in 2004 when Audrey Seiler's fake disappearance became national news story and later a notorious one.

"I'm not sure that we've ever seen anything in Madison like Audrey Seiler, and I think that there is no interest on the department's behalf that this becomes a spectacle like Audrey Seiler," said DeSpain.

Neither family nor police have reason to believe nationwide attention is necessary, but Kelly Nolan seems to have vanished without a trace. Family and officials said that they believe more exposure to her picture and story might help bring forward more clues to her whereabouts.

"We've gotten so many tips," said Kelly's sister, April Nolan. "The police have told us that's a huge help. As far as doing this, the more we get her name and face out there, the more information we're going to get."

"It's about sending out the loudest scream I could ever make and telling everybody that you'd miss someone you love," said Kelly's mother, Mary Jane Nolan. "That' you'd die for that person, that you want them back or you don’t know if you can make it through your life."

Madison has had a number of missing person cases over the last six years. Police said that there have been 154 missing adult cases since 2001. There have been 12 cases already this year -- three of which are still missing, including Kelly Nolan, WISC-TV reported.