Australian Federal Police officers are raiding the ABC's Sydney offices over a series of stories about Australia's elite special forces in Afghanistan published in 2017.The raid comes a day after the AFP spent seven and a half hours searching the home of NewsCorp political journalist Annika Smethurst. The ABC's Head of Investigative Journalism John Lyons said the AFP had issued a warrant naming three journalists, including news director Gaven Morris. Mr Lyons said officers had told him they were interested in 'certain things' relating to the stories known as 'The Afghan Files'. Based on documents obtained by the broadcaster, the report exposed a 'growing unease' within the Defence department about Australia's special forces. In a statement, the AFP said it executed a search warrant on the Ultimo premises in relation to 'allegations of publishing classified material'