A US man was rescued from the clutches of death thanks to three good samaritans it has emerged.

Authorities said the man fell onto the tracks of Boston’s Orange Line at North Station at about 9pm local time on Wednesday.

A video showed the man walking straight onto the tracks, where he remained motionless.

Three people then jumped down and lifted him to safety, including one man who came from the opposite platform.

Massachusetts Bay Transportation Authority spokesman Joe Pesaturo said authorities were notified of the incident and trains in the area were immediately stopped, so the man was not in danger of being struck.

Mr Pesaturo said the man was alert and had no visible injuries when pulled back onto the platform. He was taken to a hospital.