Two children died after a building collapsed in North Delhi’s Sabzi Mandi area on Monday, PTI reported.

Joint Commissioner of Police (Central) NS Bundela said that the children, aged seven and 12, were brothers. They were rescued and taken to a nearby hospital, where they were declared brought dead.

“They were passing by the road with their mother when the building collapsed and the two brothers got trapped under the debris,” Bundela added.

The police also said that a 72-year-old man, identified as Ramji Das, has been rescued. He sustained injuries on his head and has been admitted to a hospital. Three to four more people are feared to be buried under the debris, according to the police.

The upper floors of the building collapsed while renovation work was happening at a confectionary shop on the ground floor, according to News 18. The pillars were being hammered for the last ten days.

Delhi Fire Service Director Atul Garg said that his department received a call about the collapse of the building at 11.50 am. Officials said that seven fire tenders were sent to the spot for rescue operations.

Bundela said that teams of the police, the Municipal Corporation of Delhi and the National Disaster Response Force are involved in the rescue operations. Local residents, who were helping in the rescue operations, have been removed from the area.

Bundela also said that a case will be registered in the matter and legal action will be taken accordingly.

A car parked near the building was severely damaged from the falling debris of the building. Witnesses said that a few adjacent buildings shook when the building collapsed and the power supply was disrupted, reported India Today.

Delhi Chief Minister Arvind Kejriwal said he is closely monitoring the situation. “The incident of building collapse in Sabzi Mandi area is very sad,” he said in a tweet. “The administration is engaged in relief and rescue work.”