A section of bridge in the Indian city of Kolkata crashed down Tuesday, reports local media.
The in the busy area of posh South Kolkata's Majherhat area collapsed partially toppling some vehicles, including two- and four-wheelers, IANS reports.
NDTV says many people are feared trapped underneath, some still in their vehicles.
Six people has been taken to the hospital, the report quoted state minister Firhad Hakim, who also claimed all those were trapped have been rescued.
The 40-year-old bridge, built by the Port Trust, stood over some rail tracks in Alipur — one of the very old areas of the city. The area is surrounded by half-constructed buildings, scaffolding and pillars.
The army, which has its base in the nearby Fort William, has sent its personnel for rescue work. Derek O'Brien, lawmaker of the state's ruling Congress, tweeted: "Cranes already put into action. Fire fighters using ladders already being used. Disaster management teams at work."
Eyewitnesses said around 4:45 pm, a huge part of the bridge came crashing down.
Pictures from the area showed the collapsed section resting on the road, at least nine vehicles, including a mini bus, and several two-wheelers still on it.
Chief Minister Mamata Banerjee, who is on a visit to Darjeeling, said the priority for now "is relief and rescue... The rest of the investigation will be done later".
"We want to go back as soon as possible. There are no flights in the evening, we are unable to do so," the Chief Minister added.
In March 2016, a section of an under-construction flyover had collapsed in central Kolkata's busy Burrabazar area.