evidence: Greater Noida: Several people were left injured in a 12-vehicle pile-up on Uttar Pradesh's Yamuna Expressway early on Wednesday morning due to dense fog that resulted in low visibility, authorities said. [...] According to official information, a pick-up van collided with a canter due to the dense fog following which many vehicles coming from behind collided with each other one after the other. After receiving information about the pile-up, relief and rescue teams reached the spot.