All the injured have been admitted to the district hospital.
Four labourers were killed, while five more remained seriously injured after temporary iron fixtures around an under-construction multi-storey private building on the Noida-Greater Noida Expressway collapsed on Sunday, police said.
According to the police, the incident was reported from sector 94 at private real estate firm BPTP's 18-storey 'Capital City', when the shuttering (temporary fixtures built of iron) came crashing down in the morning.
Prima facie, it appeared that the shuttering was hit by a tractor-trolley carrying construction material, which led to the incident, but the cause is yet to be ascertained, a police official said.
"Nine people were injured when the shuttering of the building collapsed. Four of them have died, while five others have been hospitalised," Senior Superintendent of Police, Gautam Buddh Nagar, Ajay Pal Sharma said.
An FIR has been registered at the Sector 39 police station, under whose jurisdiction the building is located, police said.
The deceased have been identified as tractor-troller driver Naushad and workers Karan, Vijaypal and Ramvijay, they said, adding the injured Ajay, Shadaab, Mahesh, Nisaarul and Ashok, are undergoing treatment at local hospitals.
Compensation to the families of the victims was assured by the city administration.
Probe in the case is pending as the workers who were fixing windows and tiles on the building on Sunday morning, allegedly did not have safety harness, a police official said.
As per the reports, a connecting pin on the shuttering was loose which caused the structure to collapse, said City Magistrate Shalender Mishra, adding the exact details would be known after the probe.
"Police are probing the matter and after that, due compensation will be given to the families of the victims as per the Wages Act," he said.
Meanwhile, real estate group BPTP said the work at the Noida site was being undertaken and supervised by M/s Ahulawalia Contractors (I) Ltd, and all the statutory compliances were also being done by them, including health and safety issues.
The group, in a statement confirmed the project is managed by M/s Mott MacDonald, a multinational project management company, who have appointed a designated health and safety officer at site.
