Thousands of children have been investigated by police for sending sexual imagery online and on their phones, an analysis has revealed.
Children as young as seven have been the subject of police action as evidence mounts of a "sexting" epidemic among British youth.
Almost 3,500 investigations into sexting by under-18s have been opened by 25 police forces over the past four years, according to data provided under the Freedom of Information Act. Just over half of Britain's forces replied to the request and showed that they were working on more than 1,000 cases per year.
