At the site where a four-storey building crashed in Mumbai's Dongri this morning, narrow lanes and a dense neighbourhood were a huge challenge for rescue workers. Two people have died and five have been rescued. The "Kesarbai" building collapsed around 11.40 am, making a loud sound that one resident compared to an "earthquake". Over 40 people are feared trapped under the decades-old building that was reduced to a mass of rubble, wires and concrete.