A 'track irregularity' and 'hot and dry weather' were some of the things found in an investigation into the trail derailment in Lewes, East Sussex, last week. Around 150 people were on the train, with thirty injured and 20 taken to hospital - two passengers who suffered serious but non-life threatening injuries remain there. Tap the link in @BBCNews's bio to read more from the report. #Train #Lewes #BBCNews