Two slabs of an under-construction flyover on the Dwarka Expressway near the Daultabad village Chowk collapsed on Sunday around 7.30 a.m.
The broken span is part of the 29-km long expressway, which is intended to connect Kherki Daula on the Delhi-Gurugram Expressway with Shiv Murti near Mahipalpur.
According to the police, three persons were injured when the huge concrete slabs fell. The injured, said to be labourers, were hospitalised immediately. Later the area was cordoned off.
A police team along with Deepak Sharan, DCP (west) rushed to the spot to take stock of the situation. A civil defence team also reached there.