The railways have cancelled a couple of trains and diverted 15 others due to the derailment of the Bengaluru City-Nanded Express after a truck collided with it in Andhra Pradesh's Anantapur district early Monday.The accident, which took place between Rangepalli and Penukonda stations, occurred when a truck rammed into the train at a level crossing, killing six people and injuring 20 others.Train No. 57438 Hindupur-Guntakal passenger and train No. 56503 Bangalore Cantonment-Vijayawada passenger have been cancelled.According to a statement from South Central Railway, the diverted trains include Mysore-Shirdi Sainagar Express, Tuticorin-Okha Express, Bagalkot-Mysore Basava Express, Secunderabad-Yesvantpur Garibrath Express, Bhubaneswar-Bangalore Prasanthi Express, Korba-Yesvantpur, Mumbai CSTM-Nagercoil Express, Kacheguda-Yesvantpur Express, New Delhi-Bangalore Karnataka Express and Kacheguda-Bangalore Express.