Police said Tuesday they are looking for a woman who slashed a high school girl with a knife in the grounds of an apartment block in Inzai, Chiba Prefecture.

According to police, the attack took place at around 8 p.m. on Monday, TBS reported. The 15-year-old victim was talking to a male friend outside the apartment block when she was attacked by a woman brandishing a knife. The woman slashed the girl on her left arm before fleeing the scene, police said.

The girl's attacker was described as being around 40 years of age, roughly 150 cm tall and wearing a black sweater and glasses.

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