A Pakistani police officer has been arrested following the fatal shooting of an Australian girl in Islamabad. The incident occurred when police opened fire on a vehicle they mistakenly believed was carrying thieves. The vehicle, a rental car, was occupied by a Perth family, and sustained significant damage from the gunfire. Authorities have confirmed the girl was killed and others in the vehicle were unharmed. An investigation is underway to determine the full circumstances surrounding the shooting and to ensure accountability. The Australian government has expressed condolences to the family and is providing consular assistance. The arrest signals a swift response from Pakistani authorities, though questions remain regarding police procedures and identification protocols.