A crowd of bystanders and CBC staff watched as the man, who is not pictured, was arrested by police. (CBC) Four large windows at CBC's Ottawa headquarters on Queen Street were smashed by a man with a sledgehammer on Tuesday afternoon.

It happened just before 2 p.m. at 181 Queen St., between Bank and O'Connor streets.

Some employees in the building heard loud bangs, rushed out to Queen Street and called 911.

No one was injured.

The 46-year-old man was arrested without incident. He was later charged with mischief to public property over $5,000, as well as possession of a dangerous weapon.