Moment of impact: The train ploughed into the bus as it drove onto the tracks of the level crossing in Mexico
According to a police investigation, CCTV shows bus driver Concepcion Beltran Palomares crossing the tracks moments after a smaller car had done the same.
The 43-year-old bus driver had apparently believed it to be safe to proceed and drove onto the crossing, which had no safety gates.
The bus was then hit by the train travelling at full speed, leaving 22 of the 26 people on board injured, some of them severely, and four dead.
22 of the 26 people on board were injured, some of them severely, and four, including the bus driver, died
The driver's wife has since spoke out following the incident and stated that her husband was not to blame.
She told local media that he had complained a number of times that the bus was old and did not have very good brakes, and it was not possible to stop easily.
The driver was travelling from the city of Los Mochis in north-western Mexico's State of Sinaloa to the city of Guadalajara in Western Mexico's State of Jalisco.
Those who died were named as the driver as well as Irma Isabel Villarreal Avila, Jose Nunez Aramburo and Porfirio Diaz Nunez.
Maybe the wife is right? That bus wasn't moving very fast and should have seen it just off to the driver's right.... is should have easily seen the train and stopped.... unless it's brakes didn't work... regulars on the bus probably knew the bus problems as well.... another accident waiting to happen....