NEW DELHI, JUNE 1 (MExN): The Indian Journalists Union (IJU) has strongly protested against the notice issued by the National Investigation Agency (NIA) to some newspapers published from Imphal, Manipur asking them to produce the photo copy of the press statement with its e-mails header, sent by the CorCom. The press release had claimed that it captured six weapons from the security forces during the May 22 Chandel ambush where six AR jawans were killed. The news of the incident was published in both local and national media. In an order signed by an Inspector, the NIA said the production of the press statement photo copy with e-mail header was necessary for its investigation.