At least seven persons, including an infant, were killed and 14 others injured when a three-storey building collapsed in Thane, Maharashtra in the wee hours of Friday. 

The 35-year-old 'Shakuntala' building, situated at Bazarpeth in Mumbra area of Thane district, collapsed after midnight when the residents were fast asleep, police said. 

Police rushed to the site at around 2.30 am and have launched relief and rescue operations. 

Many are still feared trapped in the debris of the building, police said.

The injured, including some seriously hurt in the mishap, have been admitted to Kalsekar Hospital, CSMH and Civil Hospital in the city, they said.