of plastic pollution. just one of the issues under discussion on world environment day. it s seven in the morning here in singapore, and 3:30am in odisha in india, where the country s worst train disaster in decades happened. there s a growing sense of shock as the scale of the crash becomes more apparent. the rescue operation has now been called off with more than 275 people known to have been killed. a major investigation is under way. officials have confirmed that signal failure may have been a factor, but there are broader concerns, too. our correspondent archana shukla has been at the scene, we ll hear from there shortly, but first, let s show you this report. a painful search. sifting through photos. from hospital to hospital, and now morgue to morgue. inconsolable and traumatised. 22 year old himanshu can barely speak. his brother was on the train that crashed. can i see my brother, just once? he keeps repeating. at this makeshift morgue, he is just one of the many
the preliminary investigation has revealed it could ve been a fault in the electrical system which are installed to avoid direct head collisions. installed to avoid direct head collisions. . , ,, collisions. that is essentially, if the train is collisions. that is essentially, if the train is running collisions. that is essentially, if the train is running on - collisions. that is essentially, if the train is running on one - collisions. that is essentially, ifj the train is running on one track collisions. that is essentially, if i the train is running on one track it doesn t divert on the other track where some other train is already stationed. there has been a fault in the electronic signalling system, is what the initial report has said. but how did that fault occur? who was behind it because mark these are some questions that the minister and all the officials at the railway have said we should wait for final investigation report to comment to get those details. but this is j