TOKYO, May 28 (Xinhua) -- Thirteen elementary school girls and three adults were injured, some critically, after a man went on a stabbing rampage close to Japan's capital Tokyo on Tuesday morning.

Police said that one child and one adult are without vital signs as a result of the frenzied attack.

The local fire department was alerted to the incident at around 7:45 a.m. local time, which occurred as the pupils were waiting for their bus in a residential area near Noborito Station in Kawasaki City, close to Tokyo.

The elementary school girls are believed to be pupils of the Caritas Elementary School, a private catholic school in Kawasaki.

The school is currently gathering information as to whether the victims attend the school and has yet to confirm the injured pupils are attendees.

A man in his 40s or 50s believed to be responsible for the stabbing rampage has been taken into custody.

Local police said that the attacker himself has sustained serious injuries to his shoulder and neck as a result of a self-inflicted wound.

According to the police, the suspect is unconscious as a result of stabbing himself in the neck.

Police have retrieved two knives from the scene of the attack.