One crime was reported near UNC's campus, while two happened in Durham near Duke.
The most recent incident was a strong-arm robbery in a parking lot in Chapel Hill on West Rosemary Street. Police said it happened sometime around 3:30 a.m.
Two unarmed men accosted the male victim, unaffiliated with UNC, shoved him against a car, and demanded his watch and cash. Police said the two men ran away and are still on the loose.
UNC student Danielle Burns got a campus alert Monday morning and says the robbery has remained on her mind ever since.
"When I read it I was kind of taken aback by it," said Burns. "I live right down the street, so the first thing I thought was, that's a really close to home type thing."
In Durham, police said two men robbed a victim several blocks away from the Washington-Duke Inn's golf course. The two suspects have since been arrested.
Another unrelated incident involved a student and two armed men near Duke's Central Campus, according to police. It happened on Anderson Street in the Mill Village Area, while the male student was attending an on-campus party.
The student told police the suspects asked to use his cell phone, threatened him with a handgun, and ran away.
Duke students are now on alert.
"It was actually really scary. Like I never thought it would actually happen so close to where I live," said Duke student Haley Mendoza-Romero. "It's better to walk in groups now that we know that it's actually dangerous here."
Duke police said they have increased patrols on and around campus and urged students to use common sense when traveling.