Four people were killed after the boundary wall of a residential complex in Sector 21 of Noida collapsed on Tuesday morning.
According to Noida District Magistrate, Suhas LY, the incident took place after the boundary wall of the Jal Vayu Vihar Society collapsed during the cleaning work of a drain adjacent to it.
The drain cleaning was conducted by the Noida Authority.
While nine workers have been rescued, the personnel of NDRF and Fire Brigade teams are conducting searches.
A guard of the society told ANI that 13 persons were deployed in the repair and maintenance of the drain when the boundary wall collapsed around 10 am.
Uttar Pradesh CM Yogi Adityanath expressed his grief over the loss of lives in the incident and has directed senior officials to reach the spot immediately and continue rescue operations on a war footing.