A bus driver trying to beat a train across a level crossing in Argentina caused a huge crash that killed at least seven people and injured scores.
The train slammed into the bus ramming it into a station platform and then striking another locomotive head-on.
The force of the crash reduced the bus to a fraction of its width and the driver was among the dead. The front of the train then slammed into another train that was preparing to leave the Flores station in a suburb of Buenos Aires
The city's passenger rail system moves at street level through most neighbourhoods of the capital and surrounding provinces, trying the patience of drivers who often can be seen ignoring the lights, bells and barriers that signal an approaching train.
The potential for collisions increases at rush-hour, particularly next to stations, with trains passing and barriers dropping every few minutes.