U.K. police have arrested five men in connection with a suspected terror plot targeting a key U.S. Air Base located in Britain. The arrests have triggered an urgent investigation, with authorities focusing on a potential link to Iran. Details regarding the nature of the plot remain scarce at this time, but officials are treating the threat as credible. NBC News correspondent Raf Sanchez is reporting on the developing situation. The investigation is ongoing to determine the full extent of the planned attack and any further potential threats. Authorities are working to ascertain the suspects’ motives and connections. This incident raises security concerns regarding facilities housing U.S. military personnel in the United Kingdom.