In an unfortunate incident, a portion of the building collapsed in the Rajawadi Colony of Ghatkopar (East). Some residents were stranded in the building. Police and fire brigade rushed to the spot trying to pull out the people trapped in the debris due to the Ghatkopar building collapse. No injuries have been reported as of now. In a similar incident, three persons were injured when the roof of a restaurant collapsed in Maharashtra`s Thane city following heavy rains, civic officials said on Sunday.