Pupils competing for places at two Plymouth grammar schools will have to resit their 11-plus exams after security for at least one of the exam papers has been compromised.
Hundreds of girls sat maths and English exams to gain one of 240 places at Devonport High School for Girls and Plymouth High School for Girls.
A letter to parents from Plymouth City Council says: "Since the examinations, we have received comments from parents that the security of the examination papers may have been compromised and understand that many parents feel that some candidates may have gained an unfair advantage because of this.
"Following our initial investigations, we have now ascertained that at least one of the papers has been compromised.
Police are investigating following a security breach involving exam papers for pupils taking the 11-plus exam in Plymouth.
A letter to parents from Plymouth City Council said: "The investigation is continuing and the matter has been referred to the police."
The breach involves exams for entry to Devonport High School for Girls or Plymouth High School for Girls.
BBC