The United Kingdom releases suspects tied to a suspected terrorism plot involving a base that hosts U.S. forces, according to reporting from U.K. and international outlets. Investigators are said to have probed possible sources behind the plan and are considering whether it was orchestrated by external actors.

Both outlets say authorities examine whether a foreign state or other groups were involved, including possible Iran-linked involvement. The Wall Street Journal reports investigators probe whether Iran or an Islamist group orchestrated the plot, based on people familiar with the matter. The Japan Times similarly reports an Iranian-linked motive is viewed as most likely by a cited source, while also noting that possible Russian involvement and an Islamist plot remain under consideration.

While the reports agree on the broad investigative scope and that suspects are released, they differ slightly in emphasis: one stresses the range of possibilities including Islamist groups, while the other highlights that an Iranian-linked motive is considered most likely alongside alternative scenarios involving Russia or Islamist actors.