Lincolnshire Police arrest a 15-year-old boy on suspicion of rape as they investigate an alleged attack on a 17-year-old girl in the Grantham area. The reports say the incident is alleged to have occurred during the early hours of an unspecified date. Police are treating the matter as a rape allegation while inquiries continue. Coverage across outlets identifies Grantham, in Lincolnshire, as the location of the alleged assault and notes the age of both the suspect and the complainant. The arrest is reported as part of the ongoing police investigation, with further details not consistently provided in the brief summaries. No additional confirmed information about the circumstances of the alleged incident, the status of charges, or any other suspects is included in the sources provided.