Armed attack in Toronto

Four people were stabbed Wednesday in a Toronto office building, the attacker was a former colleague of theirs.

At least one employee of the firm is in critical condition according to a police spokesman.

Another two of the injured were hospitalized, but their injuries are not life-threatening. The fourth employee suffered minor injuries, were treated and no hospitalization was needed. Among the wounded there were three men and a woman.

A suspect has been arrested, according to a representative of the Toronto police, who said the attacker used either scissors or a knife.

The attacker has been identified as Chuang Li, age 47, risking to be charged with attempted murder, aggravated assault and assault with a weapon.

The incident occurred in the Yonge Corporate Centre, on one of the most famous streets in Toronto.