The passenger got out and pulled on the chain.

The passengers pulled neckerchiefs onto their faces to cover noses and mouths.

On Saturday, transit officials had said the incident began when an unidentified passenger pulled the cord and set the emergency brakes.

When I politely explained the situation, these passengers almost always pulled back.

Another passenger then pulled the emergency brake, stopping the train underground between the two stations.

The passenger pulled the emergency brake cord, and the train stopped, about three-quarters of the way into the station.

The track then pitches up 90 degrees to the vertical, with the passengers pulling 4.5Gs.

In a plane, passengers pull the latch up to release themselves.

A passenger on the train pulled the emergency brake, which stopped the train.

Victims have included passengers pulled from a bus and shot, people going on morning walks and members of security forces.