A section of a bridge in a busy area of posh south Kolkata came crashing down this afternoon, triggering shock across the city. Many people are feared trapped underneath, some still in their vehicles. One person was killed, 24 were injured and they have been shifted to the hospital. The army, which has its base in the nearby Fort William, has sent its personnel for rescue work.

The 40-year-old bridge, built by the Port Trust, stood over some rail tracks in Alipore -- one of the very old areas of the city. The area is surrounded by half-constructed buildings, scaffolding and pillars.

Eyewitnesses said around 4.45 pm, a huge segment 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.

Here are the highlights from the bridge collapse in south Kolkata: