Students, faculty and staff were notified Monday night of a robbery that happened earlier in the evening northeast of Cessna Stadium on 21st Street.

But they were not notified of a robbery attempt that reportedly happened hours later.

A little after 9 p.m. Monday, an unknown male approached a 20-year-old Wichita State student as he was walking west on the sidewalk near Koch Arena and demanded his wallet, according to an email alert from the University Police Department.

The suspect also struck the student in his left hand with his fist, the alert said. The student threw his wallet on the ground and ran to his car and left the area. The suspect left in an unknown direction on foot.

The alert described the suspect as a black male in his mid-20s, approximately 6 feet tall and more than 200 pounds.

The wallet has not been recovered, and the case remains under investigation, the alert stated.

Later in the night — just after midnight — two males reportedly demanded money from a pedestrian who was walking in a parking lot near 21st and Hillside, according to a university police blotter.

“Two males demanded money from a pedestrian who refused to give it away,” the blotter reads. “The two males ran from the area.”

In the crime alert from the earlier robbery, Chief of University Police Sara Morris reminded students to walk in groups, hide cell phones while walking and to be alert of immediate surroundings.

“Although crimes like this happen most often in secluded areas away from witnesses, this is a reminder that crime can occur at any place and at any time,” Morris said.

If anyone has information that may help solve either of these crimes, students are encouraged to contact the UPD detective section at 316- 978-3450.