Taipei City announces that police alertness will be fully upgraded.

Taipei City Mayor Jiang Wanan announced on the 20th that in order to prevent random acts of violence from happening again, the city's police force will immediately elevate their level of vigilance. The police will increase patrols and inspections in commercial areas and places with high pedestrian traffic. On the evening of the 19th, a random act of violence occurred near Taipei Main Station and Taipei Metro Zhongshan Station, resulting in the deaths of 4 people, including the perpetrator. Jiang Wanan made the above statement after participating in a meeting of Taipei City Government's emergency response task force on the 20th. On the 20th, the Executive Yuan's "National Police Agency" and Taipei City Police Department held press conferences to announce details of the case. Preliminary investigations by the police indicate that the incident was a premeditated lone random attack by the perpetrator, and have ruled out the possibility of a terrorist attack.