Bad news.

Yesterday was a terrible day, because at 20:40 at night a train exited the via (I'm not sure what you mean. Do you mean "a train came off the tracks"?). In the train were 268 persons ("people" sounds more natural but "persons" works), for now the police and ambulance have found aproximately 79 dead, which is really terrible. This accident is the most importante (no "e" on important) in Spanish (or Spain's) history since 40 years ago.
The train had 8 wagons. One of them flew on in the air. The rest of the wagons crashed with into the wall.
Renfe ( The train's company) said that the train went at high velocities, and that was were a cause of the train exited the via coming off the tracks (?).
From here, I want to send strength at to all the families that they had loved ones in on the train.

Bad news.

Yesterday was a terrible day because at 20:40 at night a train exited the via (left the tracks). In the train were 268 people and so far the police and ambulance services have found approximately 79 dead, it is really terrible. This accident is the most important in Spanish history for forty years. 
The train had 8 carriages, one of them flew into the air. The rest of the carriages crashed into the wall.
Renfe (the train's operating company) said that the train travelled at a high speed, and that was a cause of the train leaving the tracks. 
From here, I want to send strength to all the families that they had loved ones on the train.