WATCH: Highway overpass collapses in Kolkata; Injured being treated

A highway overpass collapsed on Tuesday in the crowded Indian city of Kolkata, and some injured people were being treated in a hospital, an official said.

Televised images from the scene showed a section about 100 feet (30 meters) long that dropped to the ground below. A half-dozen vehicles, including a bus, fell with the section of concrete.

Seven or eight people were taken to a local hospital after the collapse in the city's Majerhat neighbourhood, West Bengal state urban development ministry official Firhad Hakim told reporters.

There were no immediate reports of deaths, but police and firefighters were using cutting tools to clear the wreckage, and it was unclear if anyone was trapped.