Mass Casualty Incidents | Slideshow

Tragic Attack in Japan

01 / 06

Japan Knife Attack

Ambulance crew and police officers are seen outside a facility for the handicapped where a number of people were killed and dozens injured in a knife attack Tuesday, July 26, 2016, in Sagamihara, outside Tokyo. (Kyodo News via AP)

02 / 06

Japan Knife Attack

Ambulance crew are seen outside a facility for the handicapped where a number of people were killed and dozens injured in a knife attack Tuesday, July 26, 2016, in Sagamihara, outside Tokyo. (Kyodo News via AP)

03 / 06

Japan Knife Attack

Ambulance crew and firefighters work outside a facility for the handicapped where a number of people were killed and dozens injured in a knife attack Tuesday, July 26, 2016, in Sagamihara, outside Tokyo. (Kyodo News via AP)

04 / 06

Japan Knife Attack

Police officers stand by with ambulances and firetrucks seen on a street near a facility for the handicapped where a number of people were killed and dozens injured in a knife attack Tuesday, July 26, 2016, in Sagamihara, outside Tokyo. (Kyodo News via AP)

05 / 06

Japan Knife Attack

Ambulance vehicles and fire trucks are seen outside a facility for the handicapped where a number of people were killed and dozens injured in a knife attack Tuesday, July 26, 2016, in Sagamihara, outside Tokyo. (Kyodo News via AP)

06 / 06

Japan Knife Attack

An ambulance moves past in front of a facility for the handicapped where a number of people were killed and dozens injured in a knife attack Tuesday, July 26, 2016, in Sagamihara, outside Tokyo. (Kyodo News via AP)