BERLIN -- A 15-year-old student has been arrested on suspicion of killing a fellow pupil at a school in western Germany, police said Tuesday.

Dortmund police said paramedics were called in the morning to the school in the nearby town of Luenen but were unable to resuscitate the 14-year-old victim.

The suspect was arrested shortly after the incident. Police said their investigations the circumstances of the killing are ongoing.

Relatives of the victim, students and teachers at the school were getting psychological counselling, police said.