A 23-year-old university student was arrested Thursday in connection with the killing of three members of his family with arrows fired from a crossbow at his home in Hyogo, western Japan, police said.

Hideaki Nozu, who was arrested at the scene in the city of Takarazuka, is believed to have deliberately shot dead his 47-year-old mother Mayumi, younger brother Hideyuki, 22, and 75-year-old grandmother Yoshimi, the police said. He also shot his aunt, who suffered serious injuries.

The police believe at least five arrows were fired. The crossbow, measuring more than 50 centimeters in length, and arrows, each measuring over 40 cm, were found in the living room of the house.

The two women who died were both shot in the head, while the man was hit by two arrows in the head and the aunt struck by one arrow in the neck, the police said.

Based on the piercing of the victims' bodies, Nozu is likely to have fired the weapon at close range, investigative sources said.

Source: ANNnewsCH