In 2005, one of four suicide bombers involved in the 7 July terrorist attacks detonated a device on a C-stock Circle line train from Liverpool Street and was approaching Aldgate. Seven passengers were killed in the bombing. Of the stations affected by the bombings, Aldgate was the first to be reopened, once police had handed back control of the site to London Underground following an extensive search for evidence. Once the damaged tunnel was repaired by Metronet engineers, the lines were reopened. This also allowed the Metropolitan line to be fully restored, since the closure had meant all trains had to be terminated two stations early, at Moorgate.