Beijing’s streets will be patrolled by 700,000 people — including law-enforcement officers and red-armband-wearing retirees — following a Sunday knife attack at a downtown mall in which one person was killed and 12 others injured.

About 200,000 public-sector workers, police officers and security guards planned to fan out across the Chinese capital on 9 p.m. Monday as part of temporary security upgrades in the city, the state-owned Beijing Daily reported via its official WeChat social media account Monday. This deployment will be expanded to 700,000 on Tuesday, according to the newspaper, which is affiliated with the municipal branch of the ruling Communist Party.

A knife-wielding man went on a rampage at the popular Joy City shopping mall in the Xidan shopping district at about 1 p.m. Sunday, wounding three males and 10 females, one of whom died in a hospital. according to Beijing police. The other 12 were treated at a hospital for non-life-threatening injuries.

The 35-year-old assailant, originally from Central China’s Henan province, reportedly told police that he launched the attack to “vent his discontent.”

Contact reporter Li Rongde (rongdeli@caixin.com)