In yet another attack, at least 13 students were injured today in southern China when they were attacked by five to six men with knives and cleavers after an argument.
"A total of 13 students were injured early today by a gang of youths armed with knives in south China's Hainan Province," said local authorities.
The pre-dawn incident is the latest in a series of knife attacks in the country in recent weeks.
The confrontation started midnight yesterday when four students of Hainan Technology and Vocational Institute were attacked outside the college by youths from the nearby villages after a dispute, Xinhua news agency reported.
Police arrived at the scene and left after questioning students.
Later, this morning, more village youths with knives joined the attackers and barged into two dormitories of the college and slashed nine students.
Two seriously wounded students were being treated at the Haikou City People's Hospital. But their injuries were not life threatening.
The attack differed slightly from other recent attacks in that the victims were college students.
The attack follows five separate assaults by lone assailants over the past two months against schoolchildren that have left 17 dead and more than 50 wounded.
Last week, a man was sentenced to death for attacking 29 kindergarten students and three teachers with a knife on April 29.
Also last week, a man with a kitchen cleaver hacked seven kindergarten students and a teacher to death at a school in northwest China before returning home and committing suicide, state media reported.
Revenge was the apparent motive in today's attack while deep rooted social divisions were largely perceived to be reason for the "social revenge" attacks on schools.