A bus driver and 21 passengers were injured in a four-bus pile-up in downtown Taipei that occurred during the morning rush hour on Monday.
The accident occurred at the intersection of Linsen N Road and Nanjing E Road when a No. 282 bus belonging to the Chih Nan Bus Co rear-ended a bus belonging to the Taipei Bus Co.
That collision set off crashes involving another two buses owned by Kuo Kuang Motor Transport Co.
The impact was so strong that Wang Chia-ching, driver of the No. 282 bus, and 21 passengers were injured, including some in the Taipei Bus Co vehicle who suffered whiplash injuries.
The Taipei Fire Dpartment dispatched 12 ambulances that took the injured to four hospitals for treatment.
Police were still trying to find the cause of the accident but ruled out alcohol as a factor because all four drivers had passed breath tests.
Because the No. 282 bus was severely damaged, police were unable to determine whether its brake system had failed.
They were also investigating the possibility that the driver of the No. 282 bus might have dozed off at the wheel because he appeared to have crashed at normal driving speed.