The attack happened in Streeterville, on Chicago Avenue just west of Lake Shore Drive.
Seven people were arrested for mob action after a group of young men attacked and beat a man on Northwestern University’s Streeterville campus Saturday night.
The victim is not affiliated with Northwestern, but the school has issued an alert for students and staff.
Chicago Police later arrested seven young men thought to be part of the group on mob action charges, according to police.
Police News Affairs Officer Michael Sullivan said the investigation is ongoing as of Sunday morning and no charges have been filed.
It happened around 8:30 p.m., just after the victim parked his scooter on the north side of Chicago Avenue across from Wieboldt Hall. About 15 to 20 men and boys, all around 16 to 20 years old and black, approached him.
One of them threw a baseball at the victim's face and knocked him to the ground, an alert from the university said. Several others from the group punched and hit him several times. The victim tried to protect himself and fought back.
The group eventually fled eastbound toward the lake. Chicago police and Northwestern University police responded, and Chicago police later arrested seven members believed to be part of the group on mob action charges, police said.
The victim was treated at the scene by Chicago Fire Department paramedics.
Nothing was stolen, and the victim could not provide descriptions of the multiple subjects involved, according to the alert.
Northwestern University police remind all community members to use caution when traveling, especially at night. If you see something suspicious, call 911 or use a blue light emergency telephone, located around campus.
You can also contact the Northwestern University Police Department at (312) 503-3456.
Anyone who might have information that could aid this investigation is asked to contact Chicago Police.