HANOI, Aug. 1 (Xinhua) -- Between January and July, 9,820 traffic accidents occurred in Vietnam, killing 4,467 people, severely injuring 2,794 people and slightly injuring 4,676 others, according to the Traffic Police Department on Thursday.

The numbers of traffic accidents, deaths, severe injuries and slight injuries dropped by 5.1 percent, 5.3 percent, 2.2 percent and 10.9 percent, respectively, against the same period last year.

In 2018, Vietnam witnessed 18,232 road crashes which killed 8,125 people, seriously injured 5,124 people and slightly wounded 9,070 others, posting year-on-year declines of 9.2 percent, 1.9 percent, 8.3 percent and 20.8 percent, respectively.

Surveillance cameras will be installed on a trial basis in Vietnam's Ho Chi Minh City and capital Hanoi by 2020 and nationwide by 2022 to monitor traffic violations, which will help ease traffic jams and accidents, the department said.