Some 300 passengers have been killed after collisions involving three trains on India's rail network. 

More than 900 people were injured in the crashes, the worst scene in India in nearly 20 years.  

The Coromandel Express, which runs from Kolkata to Chennai, derailed and fell on the opposite track, with many people still trapped, the reports said. 

The derailed passenger train collided with a goods train in the Balasore district. A second passenger train was also involved in the incident, but it is as of yet unclear when it crashed.  

“As I stepped out of the train's bathrooms, suddenly it tilted. I lost my balance. I held on to something [and] I almost fell,” one woman said.  

“My body tilted, my slippers, my bag - everything went topsy-turvy, and people started falling all over each other.” 

Many people are still trapped within the train. A frantic rescue mission is underway at the crash site, around 135 miles southwest of Kolkata. 

Prime Minister Narendra Modi says "all possible assistance" is being provided, and he is distressed by the disaster.  

“In this hour of grief, my thoughts are with the bereaved families,” he said. “May the injured recover soon”