At least 100 people are reported to have been injured after two trains collided in India's eastern Odisha state.<br /><br />Nearly 50 ambulances have been sent to the scene, according to the state's chief secretary.<br /><br />It is feared that a number of people have died.<br /><br />Indian Prime Minister Narendra Modi tweeted to say he was distressed by the incident and his thoughts were with the bereaved families.