Beijing , China ( CNN ) -- Police have detained a man accused of having killed at least three kindergarten students Tuesday in east China 's Zibo City , Shandong Province , the city government said Wednesday , according to the state-run Xinhua News Agency . Fang Jiantang , 26 , was detained hours after the attack and has told police he was responsible , said the government in a statement . In addition to the three fatalities , three other children and four teachers were wounded , it said . Two of the teachers were in serious condition , it said . Police found the two-foot ( 60-centimeter ) knife that Fang said he used , the statement said . The motive for the attack was not immediately known . The attack is one of at least five knife or cleaver attacks on schoolchildren in China since March . CNN 's John Vause contributed to this story .
Xinhua : four dead , four children and three others wounded . Xinhua : Police find two-foot ( 60-centimeter ) knife that Xinhua said he used . Motive for attack not immediately known . The 26-year-old man tells police he was responsible .