A building collapsed in the Rohini Sector 16 area of the national capital this evening. According to the Delhi Fire Service, four to five people are feared trapped under the debris and rescue operations are underway at the site. Two teams of the NDRF are also engaged in rescue and relief operations. The Delhi Fire Service said it received a call about the incident at 4:20 PM today, following which six fire tenders were rushed to the spot. According to initial information, renovation work was underway in some flats of the building at the time of the incident.