Two people were killed and another person was injured after the slab of a 25-year-old four-storey residential building collapsed in Maharashtra's Thane city on Sunday morning, civic officials said.

The slab of a flat on the third floor of 'C-wing' of the Khatri Apartments, located in Rabodi area, came crashing down on its ground floor at around 6 am, Thane Municipal Corporation's (TMC) deputy commissioner Ashok Burpulle said.