 At about 09 : 55 on 17 May 1938 , an eastbound Inner Circle train collided with an eastbound Ealing Broadway – Barking District line train to the east of the station . The Barking train had been stopped at an automatic signal on its way to Temple station . Six passengers were killed and 43 injured . The cause of the accident was a faulty signal , which showed a green " proceed " aspect to the second train even though the line ahead was not clear . This was a result of a wrong connection made during the previous night when some minor alterations to wiring were made . 
