OSAKA – A woman was arrested for attempted murder after attacking an 11-year-old boy Wednesday at an elementary school in Osaka and seriously wounding him, police said.

The boy, who suffered injuries to his chest and limbs, was taken to a hospital. His wounds are not thought to be life-threatening, police said.

Rescue workers said the woman, 35, attacked the fifth-grader near the school’s front gate.

Investigators quoted the woman as saying she had stabbed many children she did not know and regretted her actions.

A witness said the woman was weeping as she was taken away in a police car.