Officers are calling the incident a robbery, and it was not an active shooter situation.
It happened just before 6:30 Wednesday night on the 100 block of Landon St. in downtown Madison.
A 19-year-old told police he was robbed at gunpoint in the 100 block of West Gilman Street around 6:20 p.m., officials said. He said the robber took his backpack, wallet and keys.
Police believe someone who knew the man chased the robber on foot as he headed towards Langdon Street, according to a release. One round was fired in the 100 block of Langdon Street by one of the robbers.
One of the robbers was detained by UW-Madison police officers at a bus stop on Observatory Drive, according to the release. A second robber was detained by MPD officers near the intersection of Gilman and Henry streets
Detectives said the armed robbery was not random and that the robbers targeted a specific person.
Several buildings on campus were locked down and UW-Madison police sent out alerts telling students and residents to stay inside during the incident.
It happened just before 6:30 p.m. on the 100 block of Landon St. in Madison.
Madison Police say it is not an active shooter situation, but they are searching for two people in the area. No injuries have been reported.
Madison college and UW-Madison Police both sent out alerts telling students and residents to stay inside.
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