Metro workers work on the site of a metro accident in Cairo, Egypt, on July 11, 2018. A metro train was derailed in Cairo on Wednesday without any injuries, according to Egypt's state-run news website Ahram Online. (Xinhua/Ahmed Gomaa)

Photo taken on July 11, 2018 shows the site of a metro accident in Cairo, Egypt. A metro train was derailed in Cairo on Wednesday without any injuries, according to Egypt's state-run news website Ahram Online. (Xinhua/Ahmed Gomaa)

Photo taken on July 11, 2018 shows a crowded metro station after a metro accident in Cairo, Egypt. A metro train was derailed in Cairo on Wednesday without any injuries, according to Egypt's state-run news website Ahram Online. (Xinhua/Ahmed Gomaa)

Metro workers work on the site of a metro accident in Cairo, Egypt, on July 11, 2018. A metro train was derailed in Cairo on Wednesday without any injuries, according to Egypt's state-run news website Ahram Online. (Xinhua/Ahmed Gomaa)

Photo taken on July 11, 2018 shows the site of a metro accident in Cairo, Egypt. A metro train was derailed in Cairo on Wednesday without any injuries, according to Egypt's state-run news website Ahram Online. (Xinhua/Ahmed Gomaa)

Photo taken on July 11, 2018 shows the site of a metro accident in Cairo, Egypt. A metro train was derailed in Cairo on Wednesday without any injuries, according to Egypt's state-run news website Ahram Online. (Xinhua/Ahmed Gomaa)

Source：  Xinhua. net