The incident occurred at about 15:20 local time (07:20 GMT) in city of Longyan. A law enforcement officer is among the victims, according to the police.
It is reported that the man was armed with a knife.
According to police, the attacker has been detained and the victims have received treatment.
READ MORE: Multiple Children Injured After Stabbing Attack at Kindergarten in China
Footage taken by eyewitnesses published on Twitter shows police officers pouncing on the alleged hijacker.
福建龙岩公交被劫持撞人事件。(7)转 pic.twitter.com/ntyh6buUvq
— 曾宁 (@pZO5xK2Su74DiBW) December 25, 2018
The causes of the incident are currently being investigated.
网传福建龙岩抢公交车撞人。转 pic.twitter.com/o5LXBvEDU6
— 曾宁 (@pZO5xK2Su74DiBW) December 25, 2018
There are no details on the man's identity or motive.