Dense fog triggers deadly UP expressway pile-ups: 4 dead, many injured

• Dense fog caused multiple severe road accidents across Uttar Pradesh, leading to fatalities and injuries.
• In Hamirpur, a bus and Bolero collided on the Bundelkhand Expressway, resulting in 3 deaths and 4 serious injuries.
• Mathura's Bareilly Highway saw a pile-up of over half a dozen vehicles due to fog, injuring 6 people and disrupting traffic.
• An 8-vehicle collision on the Agra-Lucknow Expressway in Unnao killed a bus driver and seriously injured 3 others.
• Two cars collided and fell into the Kali river in Etah due to dense fog, but all passengers were safely rescued.

Why It Matters: Dense fog causes fatal accidents on UP expressways, highlighting winter driving risks.