A Canadian man has been arrested by Indian authorities at the New Delhi’s airport after a crocodile skull was found in his luggage.

A 32-year-old Canadian was detained at Delhi airport for attempting to transport a crocodile skull. The animal belonged to a protected species, as confirmed by customs officials and experts from the Department of Forests and Wildlife.

Dense fog and severe air quality levels have caused travel chaos in India's capital Delhi. Visibility in several areas was reported to be zero in the early hours of Friday, disrupting flights, trains and road transport.

More than 150 flights were delayed as dense smog engulfed Delhi on Friday and reduced visibility to almost zero in parts of the Indian capital. At least 26 trains were also delayed as the city’s air quality deteriorated to “severe” category,