A woman is lucky to be alive after she narrowly avoided being crushed by a train.

It is thought she had climbed down to the tracks at the station in Sao Paulo, Brazil, after dropping her mobile phone.

Footage filmed on a mobile phone shows the moment she scrambled back onto the platform with barely a second to spare as a train pulled to a halt.

Two men at the scene helped to drag her to safety and she walked away unharmed, reports said.

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