A woman wearing a hijab was hit above the eye by an egg thrown from a passing car in what police in Surrey described as a racially-aggravated assault.
It happened as she walked past the Children's Centre, in Church Road, Frimley, at about 2100 GMT on 22 March.
She told police that a light blue Peugeot 206 drove past her and tooted, but when she turned round one of several young men inside threw the egg.
She suffered a small bump above her eye but did not require medical treatment.
Any witnesses to the attack have been urged to contact police.