The last week-and-a-half produced three late-night incidents of knife violence near campus.

Department of Public Safety spokeswoman Diane Brown said she perceives an unusual boost in knife-related crime of late, but that the incidents seem unrelated.

A 35-year-old man was stabbed at 1 a.m. on July 14 while walking from a friend's apartment to his car, Ann Arbor Police Lt. Angella Abrams said. After the victim called a man who was leaning on his Saab "rude," the man beckoned the victim to the car and began punching him repeatedly in the stomach, she said.

She said the man then brandished a knife and stabbed the victim numerous times before running toward the Forest Street parking structure.

The victim told police that the assailant was a white man, about 5 feet 8 inches, about 22 years old, had very short brown hair and had no facial hair.

On July 13 at 2:45 am, Abrams said a Dearborn man was stabbed on the fourth floor of the Maynard Street parking structure by one of four men who followed him from outside The Necto on East Liberty Street, where they and the man had yelled at each other.

In the parking structure, one of the four men approached and stabbed the victim, then smashed in a window of the victim's car with a crowbar, Abrams said.

A DPS crime alert describes the suspects as black men with a light complexion, 19 to 20 years old, about six feet tall and wearing a baggy polo shirt with red stripes.

The third incident occurred July 20 before 10:30 p.m. between a man and at least one other man who may have been a friend, Brown said.

Brown said DPS officers found a 23-year-old man who may be homeless stumbling drunk across the Diag and bleeding from several cuts on his face.

The man told police he had been drinking at South Forest Avenue and South University Avenue when he and his friends decided to cut one another for fun, Brown said.