Toronto police have taken a 22-year-old man into custody in connection with a stabbing at City Hall.

Police say a man in his 40s was stabbed twice, possibly with a pair of scissors — once in the neck and once in the chest — inside the Toronto Public Library branch which is located just inside the foyer of the building.

It appears the two men became involved in a dispute over the use of a computer inside the branch.

Moments after the altercation reporters saw a ripped down jacket, with feathers and bloody tissues littering the floor of the library.

Despite the assault, a spokesperson for TPL, said the city's libraries are safe places.

"With 18 million people coming through your doors, you're dealing with all kinds of people, and some serious incidents can happen," said Anne Marie Aikins.

Police say the suspect was arrested a short time later near Queen Street West and University Avenue.

No names have been released.