carriage

Mark, 44, of Essex, told the PA news agency: "We were on the Tube. It came through twice for me. The whole Tube carriage's phones started going when we got signal."

Sixteen people died and about 20 were injured when the upper carriage of the Glória crashed.

"After examining the wreckage at the site, it was immediately determined that the cable connecting the two carriages had given way," the preliminary report said.

The leader of the rail workers union Fectrans claimed that some workers had complained that problems with the tension of the cable that hauls the carriages had made braking difficult.

The two carriages on the Glória route are attached to opposite ends of a haulage cable, which is pulled by electric motors.