Commuters cross a railway track amid fog on a cold winter morning in Nagaon district of India's northeastern state of Assam, Dec. 12, 2023. (Str/Xinhua)
A vendor rides a bicycle amid fog on a cold winter morning in Nagaon district of India's northeastern state of Assam, Dec. 12, 2023. (Str/Xinhua)
A man rides a motorcycle amid fog on a cold winter morning in Nagaon district of India's northeastern state of Assam, Dec. 12, 2023. (Str/Xinhua)
A man rides a motorcycle amid fog on a cold winter morning in Nagaon district of India's northeastern state of Assam, Dec. 12, 2023. (Str/Xinhua)
A man pushing a bicycle walks on a railway bridge amid fog on a cold winter morning in Nagaon district of India's northeastern state of Assam, Dec. 12, 2023. (Str/Xinhua)