AGRA, Dec. 19 -- With another death on Wednesday night, the toll in the Yamuna Expressway tragedy climbed to 19, even as another vehicle pile-up was reported amid dense fog on the Agra-Jaipur highway on the intervening night of Wednesday and Thursday. Usman, 50, one of the 80 people injured in Tuesday's massive pile-up on the Yamuna Expressway, died while undergoing treatment at SN Medical College and Hospital in Agra, confirmed Mathura district magistrate (DM) Chandra Prakash Singh. The accident occurred in the early hours of Tuesday when eight buses and three cars piled up on the expressway due to poor visibility caused by dense fog. Several vehicles caught fire following the collision. Meanwhile, another pile-up involving six vehicles -- two buses, two cars and two trucks -- occurred near Kirawali town on the Agra-Jaipur highway on the intervening night of Wednesday and Thursday. While locals claimed that about half a dozen people were injured, the office of the deputy commissioner of police (west), Agra Rural, confirmed injuries to two....