ZHENGZHOU - Seven students who were stabbed on Friday in Central China's Henan province have been transferred to bigger hospitals for treatment, local hospitals said Saturday.

The seven, carrying injuries such as cut-off fingers or ears, were transferred from three local hospitals in Guangshan county to the ones in nearby cities of Xinyang and Wuhan on Friday, managers with the three hospitals said.

Among the others injured, two of them were in Intensive Care Unit (ICU) at the People's Hospital in Guangshan county.

The attack happened around 7 am, when the suspect Min Yingjun burst into an old woman's house near the Chenpeng Village Primary School in Wenshu township, hit the woman and stabbed her with a kitchen knife he picked up in the house. Min then rushed out to the school, and allegedly chopped 22 students to injuries.

The students injured are between six and 12 years old, according to the hospitals.

The woman, 85-year-old Xiang Jiaying, was receiving treatment at ICU, said her daughter.

Police has caught the suspect, 36-year-old Min, who they believe might be mentally ill.

Further investigation is under way.