A 17-year-old male high school student was stabbed early Tuesday at his home in Warabi, Saitama Prefecture, by a suspected intruder, police said.

The boy sustained wounds to his neck and other parts of his body, but the injuries were not life-threatening, according to authorities. Police said they had received an emergency call around 3:30 a.m.

When the police arrived at the boy's house, the windows of his bedroom on the second floor were unlocked and they found footprints that do not belong to any of his family members on the balcony, according to investigators.

The 42-year-old father told the police he was in a different room of the second floor when he heard a scream from his son's bedroom. The father had initially told the police that he was on the first floor.

He then saw his son running out of his room followed by a man in dark clothes, believed to be in his 20s or 30s and about 175 cm tall.

The two are living with a 33-year-old woman at the house and they were all sleeping on the second floor when the incident happened, according to the police.

Police are treating the incident as a case of attempted murder.