Two Trains Collide in Mexico Killing at Least 13

Tons of corn lay strewn across these tracks in western Mexico, after two cargo trains collided in the early hours of Tuesday morning. 
           
State officials say the accident was caused by a faulty track change.  
          
They said rescue workers were looking to see if there were more bodies buried in the train wreckage.
            
The majority of those killed were undocumented migrants.             

Every year migrants from Central America risk their lives and travel thousands of kilometers through Mexico to reach the United States.             

Many hitch rides on cargo trains, with some slipping to their death or losing limbs in the process.