AHMEDABAD: Nearly 15 labourers were feared trapped under the debris after a slab collapsed at an under-construction commercial building in Kudasan near Gandhinagar on Wednesday evening.Eight workers were rescued by fire brigade personnel and local residents and taken to hospital, officials said.According to Gandhinagar chief fire officer Rajesh Patel, the commercial complex, named Bosky the Empire, had been constructed up to the third floor. The incident occurred around 9.15pm when labourers were working at the site and the third-floor slab suddenly gave way, causing a portion of the structure to collapse.Local residents were the first to respond and managed to pull out four workers from the rubble before fire brigade teams arrived. Rescue personnel subsequently rescued four more labourers and shifted them to Gandhinagar Civil Hospital.The fire brigade launched an extensive search-and-rescue operation and began cutting through the collapsed slab to remove debris and reach those believed to be trapped underneath. “We fear that some 15 labourers are still buried under the debris,” Patel said.Senior Gandhinagar Civil Hospital officials said eight patients were brought to the hospital by EMRI ambulances from the site around 10 pm, while two to three other patients were brought in by other vehicles.“None are currently serious, and all are being provided treatment for their injuries. We have received information that there could be some more persons at the site. More details will be ascertained later. Stabilising the patients is the priority,” a senior official said.Sources added that the workers had primarily suffered head and body injuries due to the impact.Rescue operations continued late into the night, with emergency personnel searching the debris for those feared trapped and working to safely extricate them.