A woman suffered a serious head injury when she was struck by a glass bottle while walking along a Scarborough street at 5pm on Saturday 22 June.
The woman, aged 31, was walking along Pavilion Terrace, near the Rice and Spice restaurant.
The projectile struck her on the forehead, leaving her with a deep laceration. She was taken to hospital for treatment.
The police are conducting enquiries to determine who threw the bottle and are appealing for witnesses. Dial 101 and ask for Detective Constable Jane Brewster. Or email Jane.Brewster@northyorkshire.pnn.police.uk. Quote reference 12190112533. Crimestoppers can also be contacted anonymously on 0800 500 111.