State media and an official say a man who couldn't register his fourth child because he didn't pay a penalty for violating China's strict family planning laws stabbed to death two government workers and injured four others.
The incident illustrates how disliked China's family planning policy is, more than 30 years after it started limiting most urban couples to one child and rural families to two.
An official from a family planning office in southern Guangxi region says the man was certified mentally disabled. The official says one of the four injured workers had a hand cut off.
The official Xinhua News Agency says the man was told by the office on Monday he couldn't register his child because he didn't pay the penalty, and returned Tuesday and attacked six workers.